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/client/consensus/beefy/src/worker.rs

@@ -526,7 +526,7 @@ where
 	{
 		let block_num = vote.commitment.block_number;
 		match self.voting_oracle().triage_round(block_num)? {
-			RoundAction::Process =>
+			RoundAction::Process => {
 				if let Some(finality_proof) = self.handle_vote(vote)? {
 					let gossip_proof =
 						GossipMessage::<B, AuthorityId>::FinalityProof(finality_proof);
@@ -536,7 +536,8 @@ where
 						encoded_proof,
 						true,
 					);
-				},
+				}
+			},
 			RoundAction::Drop => metric_inc!(self.metrics, beefy_stale_votes),
 			RoundAction::Enqueue => error!(target: LOG_TARGET, "🥩 unexpected vote: {:?}.", vote),
 		};