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/support/test/tests/authorize.rs

@@ -365,8 +365,8 @@ fn valid_call_weight_test() {
 			dispatch_success: true,
 			call_weight: pallet1::CALL_2_WEIGHT,
 			ext_weight: pallet1::CALL_2_AUTH_WEIGHT,
-			actual_weight: pallet1::CALL_2_REFUND + pallet1::CALL_2_AUTH_WEIGHT -
-				call_2_auth_weight_refund,
+			actual_weight: pallet1::CALL_2_REFUND + pallet1::CALL_2_AUTH_WEIGHT
+				- call_2_auth_weight_refund,
 		},
 		Test {
 			call: RuntimeCall::Pallet1Instance2(pallet1::Call::call3 { valid: true, some_gen: 1 }),