style: Migrate to stable-only rustfmt configuration

- Remove nightly-only features from .rustfmt.toml and vendor/ss58-registry/rustfmt.toml
- Removed features: imports_granularity, wrap_comments, comment_width,
  reorder_impl_items, spaces_around_ranges, binop_separator,
  match_arm_blocks, trailing_semicolon, trailing_comma
- Format all 898 affected files with stable rustfmt
- Ensures long-term reliability without nightly toolchain dependency

bizinikiwi/pezframe/election-provider-multi-phase/src/lib.rs

@@ -1769,7 +1769,7 @@ impl<T: Config> Pezpallet<T> {
 
 		match SignedSubmissionNextIndex::<T>::get() {
 			0 => Ok(()),
-			next =>
+			next => {
 				if SignedSubmissionsMap::<T>::get(next).is_some() {
 					return Err(
 						"The next submissions index should not be in the submissions maps already"
@@ -1777,7 +1777,8 @@ impl<T: Config> Pezpallet<T> {
 					);
 				} else {
 					Ok(())
-				},
+				}
+			},
 		}
 	}
 
@@ -1786,12 +1787,13 @@ impl<T: Config> Pezpallet<T> {
 	fn try_state_phase_off() -> Result<(), TryRuntimeError> {
 		match CurrentPhase::<T>::get().is_off() {
 			false => Ok(()),
-			true =>
+			true => {
 				if Snapshot::<T>::get().is_some() {
 					Err("Snapshot must be none when in Phase::Off".into())
 				} else {
 					Ok(())
-				},
+				}
+			},
 		}
 	}
 }
@@ -2749,8 +2751,8 @@ mod tests {
 
 		let mut active = 1;
 		while weight_with(active)
-			.all_lte(<Runtime as pezframe_system::Config>::BlockWeights::get().max_block) ||
-			active == all_voters
+			.all_lte(<Runtime as pezframe_system::Config>::BlockWeights::get().max_block)
+			|| active == all_voters
 		{
 			active += 1;
 		}