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/modules/teyrchains/src/lib.rs

@@ -526,14 +526,16 @@ pub mod pezpallet {
 
 				let update_result: Result<_, ()> =
 					ParasInfo::<T, I>::try_mutate(teyrchain, |stored_best_head| {
-						let is_free = teyrchain_head_size <
-							T::ParaStoredHeaderDataBuilder::max_free_head_size() as usize &&
-							match stored_best_head {
+						let is_free = teyrchain_head_size
+							< T::ParaStoredHeaderDataBuilder::max_free_head_size() as usize
+							&& match stored_best_head {
 								Some(ref best_head)
 									if at_relay_block.0.saturating_sub(
 										best_head.best_head_hash.at_relay_block_number,
 									) >= free_headers_interval =>
-									true,
+								{
+									true
+								},
 								Some(_) => false,
 								None => true,
 							};
@@ -699,8 +701,8 @@ pub mod pezpallet {
 					at_relay_block_number: new_at_relay_block.0,
 					head_hash: new_head_hash,
 				},
-				next_imported_hash_position: (next_imported_hash_position + 1) %
-					T::HeadsToKeep::get(),
+				next_imported_hash_position: (next_imported_hash_position + 1)
+					% T::HeadsToKeep::get(),
 			};
 			ImportedParaHashes::<T, I>::insert(
 				teyrchain,