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/pezframe/vesting/src/lib.rs

@@ -703,8 +703,8 @@ impl<T: Config> Pezpallet<T> {
 		};
 
 		debug_assert!(
-			locked_now > Zero::zero() && schedules.len() > 0 ||
-				locked_now == Zero::zero() && schedules.len() == 0
+			locked_now > Zero::zero() && schedules.len() > 0
+				|| locked_now == Zero::zero() && schedules.len() == 0
 		);
 
 		Ok((schedules, locked_now))