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/nomination-pools/test-delegate-stake/src/mock.rs

@@ -190,7 +190,13 @@ impl pezpallet_nomination_pools::adapter::StakeStrategy for MockAdapter {
 		bond_type: BondType,
 	) -> DispatchResult {
 		if LegacyAdapter::get() {
-			return TransferStake::pledge_bond(who, pool_account, reward_account, amount, bond_type);
+			return TransferStake::pledge_bond(
+				who,
+				pool_account,
+				reward_account,
+				amount,
+				bond_type,
+			);
 		}
 		DelegateStake::pledge_bond(who, pool_account, reward_account, amount, bond_type)
 	}