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/procedural/src/dynamic_params.rs

@@ -147,8 +147,8 @@ fn ensure_codec_index(attrs: &Vec<syn::Attribute>, span: Span) -> Result<()> {
 
 /// Used to inject arguments into the inner `#[dynamic_pallet_params(..)]` attribute.
 ///
-/// This allows the outer `#[dynamic_params(..)]` attribute to specify some arguments that dont need
-/// to be repeated every time.
+/// This allows the outer `#[dynamic_params(..)]` attribute to specify some arguments that don't
+/// need to be repeated every time.
 struct MacroInjectArgs {
 	runtime_params: syn::Ident,
 	params_pallet: syn::Type,
@@ -311,7 +311,7 @@ impl ToTokens for DynamicPalletParamAttr {
 					)*
 				}
 
-				impl #scrate::traits::dynamic_params::AggregratedKeyValue for Parameters {
+				impl #scrate::traits::dynamic_params::AggregatedKeyValue for Parameters {
 					type Key = #key_ident;
 					type Value = #value_ident;
 
@@ -497,7 +497,7 @@ impl ToTokens for DynamicParamAggregatedEnum {
 			#vis enum #params_key_ident {
 				#(
 					#(#attributes)*
-					#param_names(<#param_types as #scrate::traits::dynamic_params::AggregratedKeyValue>::Key),
+					#param_names(<#param_types as #scrate::traits::dynamic_params::AggregatedKeyValue>::Key),
 				)*
 			}
 
@@ -515,11 +515,11 @@ impl ToTokens for DynamicParamAggregatedEnum {
 			#vis enum #params_value_ident {
 				#(
 					#(#attributes)*
-					#param_names(<#param_types as #scrate::traits::dynamic_params::AggregratedKeyValue>::Value),
+					#param_names(<#param_types as #scrate::traits::dynamic_params::AggregatedKeyValue>::Value),
 				)*
 			}
 
-			impl #scrate::traits::dynamic_params::AggregratedKeyValue for #name {
+			impl #scrate::traits::dynamic_params::AggregatedKeyValue for #name {
 				type Key = #params_key_ident;
 				type Value = #params_value_ident;
 
@@ -536,13 +536,13 @@ impl ToTokens for DynamicParamAggregatedEnum {
 			}
 
 			#(
-				impl ::core::convert::From<<#param_types as #scrate::traits::dynamic_params::AggregratedKeyValue>::Key> for #params_key_ident {
-					fn from(key: <#param_types as #scrate::traits::dynamic_params::AggregratedKeyValue>::Key) -> Self {
+				impl ::core::convert::From<<#param_types as #scrate::traits::dynamic_params::AggregatedKeyValue>::Key> for #params_key_ident {
+					fn from(key: <#param_types as #scrate::traits::dynamic_params::AggregatedKeyValue>::Key) -> Self {
 						#params_key_ident::#param_names(key)
 					}
 				}
 
-				impl ::core::convert::TryFrom<#params_value_ident> for <#param_types as #scrate::traits::dynamic_params::AggregratedKeyValue>::Value {
+				impl ::core::convert::TryFrom<#params_value_ident> for <#param_types as #scrate::traits::dynamic_params::AggregatedKeyValue>::Value {
 					type Error = ();
 
 					fn try_from(value: #params_value_ident) -> Result<Self, Self::Error> {