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/network/sync/src/block_request_handler.rs

@@ -400,8 +400,9 @@ where
 
 			let body = if get_body {
 				match self.client.block_body(hash)? {
-					Some(mut extrinsics) =>
-						extrinsics.iter_mut().map(|extrinsic| extrinsic.encode()).collect(),
+					Some(mut extrinsics) => {
+						extrinsics.iter_mut().map(|extrinsic| extrinsic.encode()).collect()
+					},
 					None => {
 						log::trace!(target: LOG_TARGET, "Missing data for block request.");
 						break;
@@ -441,9 +442,9 @@ where
 				indexed_body,
 			};
 
-			let new_total_size = total_size +
-				block_data.body.iter().map(|ex| ex.len()).sum::<usize>() +
-				block_data.indexed_body.iter().map(|ex| ex.len()).sum::<usize>();
+			let new_total_size = total_size
+				+ block_data.body.iter().map(|ex| ex.len()).sum::<usize>()
+				+ block_data.indexed_body.iter().map(|ex| ex.len()).sum::<usize>();
 
 			// Send at least one block, but make sure to not exceed the limit.
 			if !blocks.is_empty() && new_total_size > MAX_BODY_BYTES {