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.~~

cumulus/primitives/utility/src/lib.rs

@@ -141,7 +141,7 @@ impl<
 	) -> Result<xcm_executor::AssetsInHolding, XcmError> {
 		log::trace!(target: "xcm::weight", "TakeFirstAssetTrader::buy_weight weight: {:?}, payment: {:?}, context: {:?}", weight, payment, context);
 
-		// Make sure we dont enter twice
+		// Make sure we don't enter twice
 		if self.0.is_some() {
 			return Err(XcmError::NotWithdrawable)
 		}
@@ -176,7 +176,7 @@ impl<
 		// Convert to the same kind of asset, with the required fungible balance
 		let required = first.id.clone().into_asset(asset_balance.into());
 
-		// Substract payment
+		// Subtract payment
 		let unused = payment.checked_sub(required.clone()).map_err(|_| XcmError::TooExpensive)?;
 
 		// record weight and asset
@@ -203,7 +203,7 @@ impl<
 
 			// Calculate asset_balance
 			// This read should have already be cached in buy_weight
-			let (asset_balance, outstanding_minus_substracted) =
+			let (asset_balance, outstanding_minus_subtracted) =
 				FeeCharger::charge_weight_in_fungibles(local_asset_id, weight).ok().map(
 					|asset_balance| {
 						// Require at least a drop of minimum_balance
@@ -221,16 +221,15 @@ impl<
 				)?;
 
 			// Convert balances into u128
-			let outstanding_minus_substracted: u128 =
-				outstanding_minus_substracted.saturated_into();
+			let outstanding_minus_subtracted: u128 = outstanding_minus_subtracted.saturated_into();
 			let asset_balance: u128 = asset_balance.saturated_into();
 
-			// Construct outstanding_concrete_asset with the same location id and substracted
+			// Construct outstanding_concrete_asset with the same location id and subtracted
 			// balance
 			let outstanding_concrete_asset: Asset =
-				(id.clone(), outstanding_minus_substracted).into();
+				(id.clone(), outstanding_minus_subtracted).into();
 
-			// Substract from existing weight and balance
+			// Subtract from existing weight and balance
 			weight_outstanding = weight_outstanding.saturating_sub(weight);
 
 			// Override AssetTraderRefunder
@@ -263,9 +262,10 @@ impl<
 	}
 }
 
-/// XCM fee depositor to which we implement the TakeRevenue trait
-/// It receives a Transact implemented argument, a 32 byte convertible acocuntId, and the fee
-/// receiver account FungiblesMutateAdapter should be identical to that implemented by WithdrawAsset
+/// XCM fee depositor to which we implement the `TakeRevenue` trait.
+/// It receives a `Transact` implemented argument and a 32 byte convertible `AccountId`, and the fee
+/// receiver account's `FungiblesMutateAdapter` should be identical to that implemented by
+/// `WithdrawAsset`.
 pub struct XcmFeesTo32ByteAccount<FungiblesMutateAdapter, AccountId, ReceiverAccount>(
 	PhantomData<(FungiblesMutateAdapter, AccountId, ReceiverAccount)>,
 );
@@ -763,7 +763,8 @@ mod test_trader {
 /// Implementation of `xcm_builder::EnsureDelivery` which helps to ensure delivery to the
 /// parent relay chain. Deposits existential deposit for origin (if needed).
 /// Deposits estimated fee to the origin account (if needed).
-/// Allows to trigger additional logic for specific `ParaId` (e.g. open HRMP channel) (if neeeded).
+/// Allows triggering of additional logic for a specific `ParaId` (e.g. to open an HRMP channel) if
+/// needed.
 #[cfg(feature = "runtime-benchmarks")]
 pub struct ToParentDeliveryHelper<XcmConfig, ExistentialDeposit, PriceForDelivery>(
 	sp_std::marker::PhantomData<(XcmConfig, ExistentialDeposit, PriceForDelivery)>,