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/node/network/statement-distribution/src/v2/cluster.rs

@@ -320,16 +320,16 @@ impl ClusterTracker {
 	) -> bool {
 		// we sent, they sent, or they signed and we received from someone else.
 
-		self.we_sent_seconded(validator, candidate_hash) ||
-			self.they_sent_seconded(validator, candidate_hash) ||
-			self.validator_seconded(validator, candidate_hash)
+		self.we_sent_seconded(validator, candidate_hash)
+			|| self.they_sent_seconded(validator, candidate_hash)
+			|| self.validator_seconded(validator, candidate_hash)
 	}
 
 	/// Whether a validator can request a candidate from us.
 	pub fn can_request(&self, target: ValidatorIndex, candidate_hash: CandidateHash) -> bool {
-		self.validators.contains(&target) &&
-			self.we_sent_seconded(target, candidate_hash) &&
-			!self.they_sent_seconded(target, candidate_hash)
+		self.validators.contains(&target)
+			&& self.we_sent_seconded(target, candidate_hash)
+			&& !self.they_sent_seconded(target, candidate_hash)
 	}
 
 	/// Returns a Vec of pending statements to be sent to a particular validator