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.~~

substrate/primitives/core/src/address_uri.rs

@@ -85,7 +85,7 @@ impl Error {
 
 /// Complementary error information.
 ///
-/// Strucutre contains complementary information about parsing address URI string.
+/// Structure contains complementary information about parsing address URI string.
 /// String contains a copy of an original URI string, 0-based integer indicates position of invalid
 /// character.
 #[derive(Debug, PartialEq, Eq, Clone)]

substrate/primitives/core/src/bandersnatch.rs

@@ -249,7 +249,7 @@ pub mod vrf {
 	///
 	/// The `transcript` summarizes a set of messages which are defining a particular
 	/// protocol by automating the Fiat-Shamir transform for challenge generation.
-	/// A good explaination of the topic can be found in Merlin [docs](https://merlin.cool/)
+	/// A good explanation of the topic can be found in Merlin [docs](https://merlin.cool/)
 	///
 	/// The `inputs` is a sequence of [`VrfInput`]s which, during the signing procedure, are
 	/// first transformed to [`VrfPreOutput`]s. Both inputs and pre-outputs are then appended to

substrate/primitives/core/src/paired_crypto.rs

@@ -73,7 +73,7 @@ pub mod ecdsa_bls377 {
 
 	#[cfg(feature = "full_crypto")]
 	impl Pair {
-		/// Hashes the `message` with the specified [`Hasher`] before signing sith the ECDSA secret
+		/// Hashes the `message` with the specified [`Hasher`] before signing with the ECDSA secret
 		/// component.
 		///
 		/// The hasher does not affect the BLS12-377 component. This generates BLS12-377 Signature