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

pezcumulus/teyrchains/runtimes/testing/yet-another-teyrchain/src/lib.rs

@@ -401,8 +401,8 @@ impl WeightToFeePolynomial for WeightToFee {
 		// in Pezkuwichain, extrinsic base weight (smallest non-zero weight) is mapped to 1
 		// MILLI_UNIT: in our template, we map to 1/10 of that, or 1/10 MILLI_UNIT
 		let p = YAP / 10;
-		let q = 100 *
-			Balance::from(
+		let q = 100
+			* Balance::from(
 				pezframe_support::weights::constants::ExtrinsicBaseWeight::get().ref_time(),
 			);
 		vec![WeightToFeeCoefficient {