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

pezkuwi/runtime/teyrchains/src/paras_inherent/mod.rs

@@ -913,8 +913,8 @@ pub(crate) fn sanitize_bitfields<T: crate::inclusion::Config>(
 			continue;
 		}
 
-		if unchecked_bitfield.unchecked_payload().0.clone() & disputed_bitfield.0.clone() !=
-			all_zeros
+		if unchecked_bitfield.unchecked_payload().0.clone() & disputed_bitfield.0.clone()
+			!= all_zeros
 		{
 			log::trace!(
 				target: LOG_TARGET,
@@ -1345,8 +1345,8 @@ fn filter_backed_statements_from_disabled_validators<
 		// By filtering votes we might render the candidate invalid and cause a failure in
 		// [`process_candidates`]. To avoid this we have to perform a sanity check here. If there
 		// are not enough backing votes after filtering we will remove the whole candidate.
-		if bc.validity_votes().len() <
-			effective_minimum_backing_votes(validator_group.len(), minimum_backing_votes)
+		if bc.validity_votes().len()
+			< effective_minimum_backing_votes(validator_group.len(), minimum_backing_votes)
 		{
 			log::debug!(
 				target: LOG_TARGET,