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/election-provider-multi-phase/test-staking-e2e/src/lib.rs

@@ -208,8 +208,8 @@ fn enters_emergency_phase_after_forcing_before_elect() {
 /// active validators. Thus, slashing a percentage of the current validators that is lower than
 /// `OffendingValidatorsThreshold` will never force a new era. However, as the slashes progress, if
 /// the subsequent elections do not meet the minimum election untrusted score, the election will
-/// fail and enter in emenergency mode.
-fn continous_slashes_below_offending_threshold() {
+/// fail and enter in emergency mode.
+fn continuous_slashes_below_offending_threshold() {
 	let staking_builder = StakingExtBuilder::default().validator_count(10);
 	let epm_builder = EpmExtBuilder::default().disable_emergency_throttling();
 
@@ -323,7 +323,7 @@ fn set_validation_intention_after_chilled() {
 }
 
 #[test]
-/// Active ledger balance may fall below ED if account chills before unbounding.
+/// Active ledger balance may fall below ED if account chills before unbonding.
 ///
 /// Unbonding call fails if the remaining ledger's stash balance falls below the existential
 /// deposit. However, if the stash is chilled before unbonding, the ledger's active balance may
@@ -350,7 +350,7 @@ fn ledger_consistency_active_balance_below_ed() {
 		// however, chilling works as expected.
 		assert_ok!(Staking::chill(RuntimeOrigin::signed(11)));
 
-		// now unbonding the full active balance works, since remainer of the active balance is
+		// now unbonding the full active balance works, since remainder of the active balance is
 		// not enforced to be below `MinNominatorBond` if the stash has been chilled.
 		assert_ok!(Staking::unbond(RuntimeOrigin::signed(11), 1000));
 
@@ -479,7 +479,7 @@ fn automatic_unbonding_pools() {
 			staking_events(),
 			[
 				// auto-withdraw happened as expected to release 2's unbonding funds, but the funds
-				// were not transfered to 2 and stay in the pool's tranferrable balance instead.
+				// were not transferred to 2 and stay in the pool's transferrable balance instead.
 				pallet_staking::Event::Withdrawn { stash: 7939698191839293293, amount: 10 },
 				pallet_staking::Event::Unbonded { stash: 7939698191839293293, amount: 10 }
 			]

substrate/frame/election-provider-multi-phase/test-staking-e2e/src/mock.rs

@@ -167,7 +167,7 @@ parameter_types! {
 	pub static SignedPhase: BlockNumber = 10;
 	pub static UnsignedPhase: BlockNumber = 10;
 	// we expect a minimum of 3 blocks in signed phase and unsigned phases before trying
-	// enetering in emergency phase after the election failed.
+	// entering in emergency phase after the election failed.
 	pub static MinBlocksBeforeEmergency: BlockNumber = 3;
 	pub static MaxActiveValidators: u32 = 1000;
 	pub static OffchainRepeat: u32 = 5;
@@ -661,7 +661,7 @@ pub fn roll_to(n: BlockNumber, delay_solution: bool) {
 		Session::on_initialize(b);
 		Timestamp::set_timestamp(System::block_number() * BLOCK_TIME + INIT_TIMESTAMP);
 
-		// TODO(gpestana): implement a realistic OCW worker insted of simulating it
+		// TODO(gpestana): implement a realistic OCW worker instead of simulating it
 		// https://github.com/paritytech/substrate/issues/13589
 		// if there's no solution queued and the solution should not be delayed, try mining and
 		// queue a solution.