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/system/src/lib.rs

@@ -887,8 +887,9 @@ pub mod pezpallet {
 
 			match Self::can_set_code(&code, res.check_version) {
 				CanSetCodeResult::Ok => {},
-				CanSetCodeResult::MultiBlockMigrationsOngoing =>
-					return Err(Error::<T>::MultiBlockMigrationsOngoing.into()),
+				CanSetCodeResult::MultiBlockMigrationsOngoing => {
+					return Err(Error::<T>::MultiBlockMigrationsOngoing.into())
+				},
 				CanSetCodeResult::InvalidVersion(error) => {
 					// The upgrade is invalid and there is no benefit in trying to apply this again.
 					Self::deposit_event(Event::RejectedInvalidAuthorizedUpgrade {
@@ -1549,8 +1550,9 @@ impl<T: Config> CanSetCodeResult<T> {
 	pub fn into_result(self) -> Result<(), DispatchError> {
 		match self {
 			Self::Ok => Ok(()),
-			Self::MultiBlockMigrationsOngoing =>
-				Err(Error::<T>::MultiBlockMigrationsOngoing.into()),
+			Self::MultiBlockMigrationsOngoing => {
+				Err(Error::<T>::MultiBlockMigrationsOngoing.into())
+			},
 			Self::InvalidVersion(err) => Err(err.into()),
 		}
 	}