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

pezbridges/bin/runtime-common/src/extensions.rs

@@ -174,8 +174,8 @@ where
 		// we are only interested in associated pezpallet submissions
 		let Some(update) = maybe_update else { return };
 		// we are only interested in failed or unneeded transactions
-		let has_failed = has_failed ||
-			!SubmitTeyrchainHeadsHelper::<T, TeyrchainsInstance>::was_successful(&update);
+		let has_failed = has_failed
+			|| !SubmitTeyrchainHeadsHelper::<T, TeyrchainsInstance>::was_successful(&update);
 
 		if !has_failed {
 			return;