Fix spelling mistakes across the whole repository (#3808)

**Update:** Pushed additional changes based on the review comments.

**This pull request fixes various spelling mistakes in this
repository.**

Most of the changes are contained in the first **3** commits:

- `Fix spelling mistakes in comments and docs`

- `Fix spelling mistakes in test names`

- `Fix spelling mistakes in error messages, panic messages, logs and
tracing`

Other source code spelling mistakes are separated into individual
commits for easier reviewing:

- `Fix the spelling of 'authority'`

- `Fix the spelling of 'REASONABLE_HEADERS_IN_JUSTIFICATION_ANCESTRY'`

- `Fix the spelling of 'prev_enqueud_messages'`

- `Fix the spelling of 'endpoint'`

- `Fix the spelling of 'children'`

- `Fix the spelling of 'PenpalSiblingSovereignAccount'`

- `Fix the spelling of 'PenpalSudoAccount'`

- `Fix the spelling of 'insufficient'`

- `Fix the spelling of 'PalletXcmExtrinsicsBenchmark'`

- `Fix the spelling of 'subtracted'`

- `Fix the spelling of 'CandidatePendingAvailability'`

- `Fix the spelling of 'exclusive'`

- `Fix the spelling of 'until'`

- `Fix the spelling of 'discriminator'`

- `Fix the spelling of 'nonexistent'`

- `Fix the spelling of 'subsystem'`

- `Fix the spelling of 'indices'`

- `Fix the spelling of 'committed'`

- `Fix the spelling of 'topology'`

- `Fix the spelling of 'response'`

- `Fix the spelling of 'beneficiary'`

- `Fix the spelling of 'formatted'`

- `Fix the spelling of 'UNKNOWN_PROOF_REQUEST'`

- `Fix the spelling of 'succeeded'`

- `Fix the spelling of 'reopened'`

- `Fix the spelling of 'proposer'`

- `Fix the spelling of 'InstantiationNonce'`

- `Fix the spelling of 'depositor'`

- `Fix the spelling of 'expiration'`

- `Fix the spelling of 'phantom'`

- `Fix the spelling of 'AggregatedKeyValue'`

- `Fix the spelling of 'randomness'`

- `Fix the spelling of 'defendant'`

- `Fix the spelling of 'AquaticMammal'`

- `Fix the spelling of 'transactions'`

- `Fix the spelling of 'PassingTracingSubscriber'`

- `Fix the spelling of 'TxSignaturePayload'`

- `Fix the spelling of 'versioning'`

- `Fix the spelling of 'descendant'`

- `Fix the spelling of 'overridden'`

- `Fix the spelling of 'network'`

Let me know if this structure is adequate.

**Note:** The usage of the words `Merkle`, `Merkelize`, `Merklization`,
`Merkelization`, `Merkleization`, is somewhat inconsistent but I left it
as it is.

~~**Note:** In some places the term `Receival` is used to refer to
message reception, IMO `Reception` is the correct word here, but I left
it as it is.~~

~~**Note:** In some places the term `Overlayed` is used instead of the
more acceptable version `Overlaid` but I also left it as it is.~~

~~**Note:** In some places the term `Applyable` is used instead of the
correct version `Applicable` but I also left it as it is.~~

**Note:** Some usage of British vs American english e.g. `judgement` vs
`judgment`, `initialise` vs `initialize`, `optimise` vs `optimize` etc.
are both present in different places, but I suppose that's
understandable given the number of contributors.

~~**Note:** There is a spelling mistake in `.github/CODEOWNERS` but it
triggers errors in CI when I make changes to it, so I left it as it
is.~~

bridges/modules/messages/src/lib.rs

@@ -47,7 +47,7 @@ pub use weights_ext::{
 
 use crate::{
 	inbound_lane::{InboundLane, InboundLaneStorage},
-	outbound_lane::{OutboundLane, OutboundLaneStorage, ReceivalConfirmationError},
+	outbound_lane::{OutboundLane, OutboundLaneStorage, ReceptionConfirmationError},
 };
 
 use bp_messages::{
@@ -90,7 +90,7 @@ pub const LOG_TARGET: &str = "runtime::bridge-messages";
 #[frame_support::pallet]
 pub mod pallet {
 	use super::*;
-	use bp_messages::{ReceivalResult, ReceivedMessages};
+	use bp_messages::{ReceivedMessages, ReceptionResult};
 	use bp_runtime::RangeInclusiveExt;
 	use frame_support::pallet_prelude::*;
 	use frame_system::pallet_prelude::*;
@@ -376,13 +376,13 @@ pub mod pallet {
 					// delivery transaction cost anyway. And base cost covers everything except
 					// dispatch, so we have a balance here.
 					let unspent_weight = match &receival_result {
-						ReceivalResult::Dispatched(dispatch_result) => {
+						ReceptionResult::Dispatched(dispatch_result) => {
 							valid_messages += 1;
 							dispatch_result.unspent_weight
 						},
-						ReceivalResult::InvalidNonce |
-						ReceivalResult::TooManyUnrewardedRelayers |
-						ReceivalResult::TooManyUnconfirmedMessages => message_dispatch_weight,
+						ReceptionResult::InvalidNonce |
+						ReceptionResult::TooManyUnrewardedRelayers |
+						ReceptionResult::TooManyUnconfirmedMessages => message_dispatch_weight,
 					};
 					lane_messages_received_status.push(message.key.nonce, receival_result);
 
@@ -455,7 +455,7 @@ pub mod pallet {
 					last_delivered_nonce,
 					&lane_data.relayers,
 				)
-				.map_err(Error::<T, I>::ReceivalConfirmation)?;
+				.map_err(Error::<T, I>::ReceptionConfirmation)?;
 
 			if let Some(confirmed_messages) = confirmed_messages {
 				// emit 'delivered' event
@@ -563,7 +563,7 @@ pub mod pallet {
 		/// The message someone is trying to work with (i.e. increase fee) is not yet sent.
 		MessageIsNotYetSent,
 		/// Error confirming messages receival.
-		ReceivalConfirmation(ReceivalConfirmationError),
+		ReceptionConfirmation(ReceptionConfirmationError),
 		/// Error generated by the `OwnedBridgeModule` trait.
 		BridgeModule(bp_runtime::OwnedBridgeModuleError),
 	}
@@ -923,7 +923,7 @@ mod tests {
 			PAYLOAD_REJECTED_BY_TARGET_CHAIN, REGULAR_PAYLOAD, TEST_LANE_ID, TEST_LANE_ID_2,
 			TEST_LANE_ID_3, TEST_RELAYER_A, TEST_RELAYER_B,
 		},
-		outbound_lane::ReceivalConfirmationError,
+		outbound_lane::ReceptionConfirmationError,
 	};
 	use bp_messages::{
 		source_chain::MessagesBridge, BridgeMessagesCall, UnrewardedRelayer,
@@ -950,11 +950,11 @@ mod tests {
 
 		let outbound_lane = outbound_lane::<TestRuntime, ()>(lane_id);
 		let message_nonce = outbound_lane.data().latest_generated_nonce + 1;
-		let prev_enqueud_messages = outbound_lane.data().queued_messages().saturating_len();
+		let prev_enqueued_messages = outbound_lane.data().queued_messages().saturating_len();
 		let valid_message = Pallet::<TestRuntime, ()>::validate_message(lane_id, &REGULAR_PAYLOAD)
 			.expect("validate_message has failed");
 		let artifacts = Pallet::<TestRuntime, ()>::send_message(valid_message);
-		assert_eq!(artifacts.enqueued_messages, prev_enqueud_messages + 1);
+		assert_eq!(artifacts.enqueued_messages, prev_enqueued_messages + 1);
 
 		// check event with assigned nonce
 		assert_eq!(
@@ -1541,7 +1541,7 @@ mod tests {
 	}
 
 	#[test]
-	fn actual_dispatch_weight_does_not_overlow() {
+	fn actual_dispatch_weight_does_not_overflow() {
 		run_test(|| {
 			let message1 = message(1, message_payload(0, u64::MAX / 2));
 			let message2 = message(2, message_payload(0, u64::MAX / 2));
@@ -1775,7 +1775,7 @@ mod tests {
 			//    returns `last_confirmed_nonce`;
 			// 3) it means that we're going to confirm delivery of messages 1..=1;
 			// 4) so the number of declared messages (see `UnrewardedRelayersState`) is `0` and
-			//    numer of actually confirmed messages is `1`.
+			//    number of actually confirmed messages is `1`.
 			assert_noop!(
 				Pallet::<TestRuntime>::receive_messages_delivery_proof(
 					RuntimeOrigin::signed(1),
@@ -1785,8 +1785,8 @@ mod tests {
 					))),
 					UnrewardedRelayersState { last_delivered_nonce: 1, ..Default::default() },
 				),
-				Error::<TestRuntime, ()>::ReceivalConfirmation(
-					ReceivalConfirmationError::TryingToConfirmMoreMessagesThanExpected
+				Error::<TestRuntime, ()>::ReceptionConfirmation(
+					ReceptionConfirmationError::TryingToConfirmMoreMessagesThanExpected
 				),
 			);
 		});