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/primitives/messages/src/lib.rs

@@ -289,27 +289,27 @@ pub struct ReceivedMessages<DispatchLevelResult> {
 	/// Id of the lane which is receiving messages.
 	pub lane: LaneId,
 	/// Result of messages which we tried to dispatch
-	pub receive_results: Vec<(MessageNonce, ReceivalResult<DispatchLevelResult>)>,
+	pub receive_results: Vec<(MessageNonce, ReceptionResult<DispatchLevelResult>)>,
 }
 
 impl<DispatchLevelResult> ReceivedMessages<DispatchLevelResult> {
 	/// Creates new `ReceivedMessages` structure from given results.
 	pub fn new(
 		lane: LaneId,
-		receive_results: Vec<(MessageNonce, ReceivalResult<DispatchLevelResult>)>,
+		receive_results: Vec<(MessageNonce, ReceptionResult<DispatchLevelResult>)>,
 	) -> Self {
 		ReceivedMessages { lane, receive_results }
 	}
 
 	/// Push `result` of the `message` delivery onto `receive_results` vector.
-	pub fn push(&mut self, message: MessageNonce, result: ReceivalResult<DispatchLevelResult>) {
+	pub fn push(&mut self, message: MessageNonce, result: ReceptionResult<DispatchLevelResult>) {
 		self.receive_results.push((message, result));
 	}
 }
 
 /// Result of single message receival.
 #[derive(RuntimeDebug, Encode, Decode, PartialEq, Eq, Clone, TypeInfo)]
-pub enum ReceivalResult<DispatchLevelResult> {
+pub enum ReceptionResult<DispatchLevelResult> {
 	/// Message has been received and dispatched. Note that we don't care whether dispatch has
 	/// been successful or not - in both case message falls into this category.
 	///