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/candidates.rs

@@ -185,9 +185,9 @@ impl Candidates {
 				let mut reckoning = PostConfirmationReckoning::default();
 
 				for (leaf_hash, x) in u.unconfirmed_importable_under {
-					if x.relay_parent == relay_parent &&
-						x.parent_hash == parent_hash &&
-						x.para_id == para_id
+					if x.relay_parent == relay_parent
+						&& x.parent_hash == parent_hash
+						&& x.para_id == para_id
 					{
 						new_confirmed.importable_under.insert(leaf_hash);
 					}
@@ -296,8 +296,9 @@ impl Candidates {
 		) {
 			for (c_hash, candidate) in i {
 				match candidate {
-					CandidateState::Unconfirmed(u) =>
-						u.extend_hypotheticals(*c_hash, v, maybe_required_parent),
+					CandidateState::Unconfirmed(u) => {
+						u.extend_hypotheticals(*c_hash, v, maybe_required_parent)
+					},
 					CandidateState::Confirmed(c) => v.push(c.to_hypothetical(*c_hash)),
 				}
 			}
@@ -335,7 +336,7 @@ impl Candidates {
 			}
 		};
 		self.candidates.retain(|c_hash, state| match state {
-			CandidateState::Confirmed(ref mut c) =>
+			CandidateState::Confirmed(ref mut c) => {
 				if !relay_parent_live(&c.relay_parent()) {
 					remove_parent_claims(*c_hash, c.parent_head_data_hash(), c.para_id());
 					false
@@ -344,7 +345,8 @@ impl Candidates {
 						c.importable_under.remove(leaf_hash);
 					}
 					true
-				},
+				}
+			},
 			CandidateState::Unconfirmed(ref mut c) => {
 				c.on_deactivate_leaves(
 					leaves,
@@ -393,9 +395,9 @@ impl CandidateClaims {
 		parent_hash: Hash,
 		para_id: ParaId,
 	) -> bool {
-		self.relay_parent == relay_parent &&
-			self.group_index == group_index &&
-			self.parent_hash_and_id.map_or(true, |p| p == (parent_hash, para_id))
+		self.relay_parent == relay_parent
+			&& self.group_index == group_index
+			&& self.parent_hash_and_id.map_or(true, |p| p == (parent_hash, para_id))
 	}
 }