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.~~

polkadot/node/network/protocol/src/grid_topology.rs

@@ -89,7 +89,7 @@ impl SessionGridTopology {
 		SessionGridTopology { shuffled_indices, canonical_shuffling, peer_ids }
 	}
 
-	/// Updates the known peer ids for the passed authorithies ids.
+	/// Updates the known peer ids for the passed authorities ids.
 	pub fn update_authority_ids(
 		&mut self,
 		peer_id: PeerId,
@@ -313,7 +313,7 @@ impl SessionGridTopologyEntry {
 		self.topology.is_validator(peer)
 	}
 
-	/// Updates the known peer ids for the passed authorithies ids.
+	/// Updates the known peer ids for the passed authorities ids.
 	pub fn update_authority_ids(
 		&mut self,
 		peer_id: PeerId,
@@ -345,7 +345,7 @@ impl SessionGridTopologies {
 		self.inner.get(&session).and_then(|val| val.0.as_ref())
 	}
 
-	/// Updates the known peer ids for the passed authorithies ids.
+	/// Updates the known peer ids for the passed authorities ids.
 	pub fn update_authority_ids(
 		&mut self,
 		peer_id: PeerId,

polkadot/node/network/protocol/src/lib.rs

@@ -871,7 +871,7 @@ pub mod v2 {
 }
 
 /// v3 network protocol types.
-/// Purpose is for chaning ApprovalDistributionMessage to
+/// Purpose is for changing ApprovalDistributionMessage to
 /// include more than one assignment and approval in a message.
 pub mod v3 {
 	use parity_scale_codec::{Decode, Encode};

polkadot/node/network/protocol/src/peer_set.rs

@@ -234,7 +234,7 @@ pub enum ValidationVersion {
 	/// The second version.
 	V2 = 2,
 	/// The third version where changes to ApprovalDistributionMessage had been made.
-	/// The changes are translatable to V2 format untill assignments v2 and approvals
+	/// The changes are translatable to V2 format until assignments v2 and approvals
 	/// coalescing is enabled through a runtime upgrade.
 	V3 = 3,
 }

polkadot/node/network/protocol/src/request_response/incoming/mod.rs

@@ -47,7 +47,7 @@ where
 	Req: IsRequest + Decode + Encode,
 	Req::Response: Encode,
 {
-	/// Create configuration for `NetworkConfiguration::request_response_porotocols` and a
+	/// Create configuration for `NetworkConfiguration::request_response_protocols` and a
 	/// corresponding typed receiver.
 	///
 	/// This Register that config with substrate networking and receive incoming requests via the

polkadot/node/network/protocol/src/request_response/mod.rs

@@ -287,7 +287,7 @@ impl Protocol {
 		match self {
 			// Hundreds of validators will start requesting their chunks once they see a candidate
 			// awaiting availability on chain. Given that they will see that block at different
-			// times (due to network delays), 100 seems big enough to accomodate for "bursts",
+			// times (due to network delays), 100 seems big enough to accommodate for "bursts",
 			// assuming we can service requests relatively quickly, which would need to be measured
 			// as well.
 			Protocol::ChunkFetchingV1 => 100,

polkadot/node/network/protocol/src/request_response/v1.rs

@@ -183,7 +183,7 @@ impl IsRequest for AvailableDataFetchingRequest {
 pub struct StatementFetchingRequest {
 	/// Data needed to locate and identify the needed statement.
 	pub relay_parent: Hash,
-	/// Hash of candidate that was used create the `CommitedCandidateRecept`.
+	/// Hash of candidate that was used create the `CommittedCandidateReceipt`.
 	pub candidate_hash: CandidateHash,
 }