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

pezkuwi/runtime/common/src/try_runtime.rs

@@ -83,12 +83,13 @@ where
 				maybe_fast_unstake_event
 			})
 			.for_each(|e: pezpallet_fast_unstake::Event<T>| match e {
-				pezpallet_fast_unstake::Event::<T>::Unstaked { result, .. } =>
+				pezpallet_fast_unstake::Event::<T>::Unstaked { result, .. } => {
 					if result.is_ok() {
 						unstaked_ok += 1;
 					} else {
 						unstaked_err += 1
-					},
+					}
+				},
 				pezpallet_fast_unstake::Event::<T>::Slashed { .. } => unstaked_slashed += 1,
 				pezpallet_fast_unstake::Event::<T>::InternalError => unreachable!(),
 				_ => {},