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/frame/support/test/tests/derive_impl_ui/attached_to_non_impl.rs

@@ -50,7 +50,7 @@ impl Animal for FourLeggedAnimal {
 	}
 }
 
-pub struct AcquaticMammal {}
+pub struct AquaticMammal {}
 
 #[derive_impl(FourLeggedAnimal as Animal)]
 struct Something {}

substrate/frame/support/test/tests/derive_impl_ui/bad_default_impl_path.rs

@@ -50,14 +50,14 @@ impl Animal for FourLeggedAnimal {
 	}
 }
 
-pub struct AcquaticMammal {}
+pub struct AquaticMammal {}
 
 // Should throw: `error: cannot find macro `__export_tokens_tt_tiger` in this scope`
 //
 // Note that there is really no better way to clean up this error, tt_call suffers from the
 // same downside but this is really the only rough edge when using macro magic.
 #[derive_impl(Tiger as Animal)]
-impl Animal for AcquaticMammal {
+impl Animal for AquaticMammal {
 	type Locomotion = (Swims, RunsOnFourLegs);
 	type Environment = (Land, Sea);
 }

substrate/frame/support/test/tests/derive_impl_ui/bad_disambiguation_path.rs

@@ -50,10 +50,10 @@ impl Animal for FourLeggedAnimal {
 	}
 }
 
-pub struct AcquaticMammal {}
+pub struct AquaticMammal {}
 
 #[derive_impl(FourLeggedAnimal as Insect)]
-impl Animal for AcquaticMammal {
+impl Animal for AquaticMammal {
 	type Locomotion = (Swims, RunsOnFourLegs);
 	type Environment = (Land, Sea);
 }

substrate/frame/support/test/tests/derive_impl_ui/missing_disambiguation_path.rs

@@ -50,10 +50,10 @@ impl Animal for FourLeggedAnimal {
 	}
 }
 
-pub struct AcquaticMammal {}
+pub struct AquaticMammal {}
 
 #[derive_impl(FourLeggedAnimal as)]
-impl Animal for AcquaticMammal {
+impl Animal for AquaticMammal {
 	type Locomotion = (Swims, RunsOnFourLegs);
 	type Environment = (Land, Sea);
 }

substrate/frame/support/test/tests/derive_impl_ui/pass/basic_overriding.rs

@@ -51,19 +51,19 @@ impl Animal for FourLeggedAnimal {
 	}
 }
 
-pub struct AcquaticMammal {}
+pub struct AquaticMammal {}
 
 // without omitting the `as X`
 #[derive_impl(FourLeggedAnimal as Animal)]
-impl Animal for AcquaticMammal {
+impl Animal for AquaticMammal {
 	type Locomotion = (Swims, RunsOnFourLegs);
 	type Environment = (Land, Sea);
 }
 
-assert_type_eq_all!(<AcquaticMammal as Animal>::Locomotion, (Swims, RunsOnFourLegs));
-assert_type_eq_all!(<AcquaticMammal as Animal>::Environment, (Land, Sea));
-assert_type_eq_all!(<AcquaticMammal as Animal>::Diet, Omnivore);
-assert_type_eq_all!(<AcquaticMammal as Animal>::SleepingStrategy, Diurnal);
+assert_type_eq_all!(<AquaticMammal as Animal>::Locomotion, (Swims, RunsOnFourLegs));
+assert_type_eq_all!(<AquaticMammal as Animal>::Environment, (Land, Sea));
+assert_type_eq_all!(<AquaticMammal as Animal>::Diet, Omnivore);
+assert_type_eq_all!(<AquaticMammal as Animal>::SleepingStrategy, Diurnal);
 
 pub struct Lion {}