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/utils/txtesttool/src/scenario.rs

@@ -18,12 +18,12 @@ use crate::{
 	runner::{DefaultTxTask, Runner, TxTask},
 	subxt_transaction::{
 		eth_transfer_payload_builder, generate_ecdsa_keypair, generate_sr25519_keypair,
-		remark_payload_builder, sub_transfer_payload_builder, EthPayloadBuilderFn, EthTransaction,
-		EthTransactionsSink, EthTxBuildContext, SubPayloadBuilderFn, SubTxBuildContext,
-		BizinikiwTransaction, BizinikiwTransactionsSink,
+		remark_payload_builder, sub_transfer_payload_builder, BizinikiwTransaction,
+		BizinikiwTransactionsSink, EthPayloadBuilderFn, EthTransaction, EthTransactionsSink,
+		EthTxBuildContext, SubPayloadBuilderFn, SubTxBuildContext,
 	},
 	transaction::{
-		BuildTransactionParams, EthTransactionBuilder, BizinikiwTransactionBuilder, Transaction,
+		BizinikiwTransactionBuilder, BuildTransactionParams, EthTransactionBuilder, Transaction,
 		TransactionBuilder, TransactionCall, TransactionRecipe, TransactionsSink,
 	},
 };