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/bin/node/testing/src/bench.rs

@@ -306,22 +306,24 @@ impl<'a> Iterator for BlockContentIterator<'a> {
 					tx_ext(0, pez_kitchensink_runtime::ExistentialDeposit::get() + 1),
 				),
 				function: match self.content.block_type {
-					BlockType::RandomTransfersKeepAlive =>
+					BlockType::RandomTransfersKeepAlive => {
 						RuntimeCall::Balances(BalancesCall::transfer_keep_alive {
 							dest: pezsp_runtime::MultiAddress::Id(receiver),
 							value: pez_kitchensink_runtime::ExistentialDeposit::get() + 1,
-						}),
+						})
+					},
 					BlockType::RandomTransfersReaping => {
 						RuntimeCall::Balances(BalancesCall::transfer_allow_death {
 							dest: pezsp_runtime::MultiAddress::Id(receiver),
 							// Transfer so that ending balance would be 1 less than existential
 							// deposit so that we kill the sender account.
-							value: 100 * DOLLARS -
-								(pez_kitchensink_runtime::ExistentialDeposit::get() - 1),
+							value: 100 * DOLLARS
+								- (pez_kitchensink_runtime::ExistentialDeposit::get() - 1),
 						})
 					},
-					BlockType::Noop =>
-						RuntimeCall::System(SystemCall::remark { remark: Vec::new() }),
+					BlockType::Noop => {
+						RuntimeCall::System(SystemCall::remark { remark: Vec::new() })
+					},
 				},
 			},
 			self.runtime_version.spec_version,
@@ -602,12 +604,13 @@ impl BenchKeyring {
 				.into()
 			},
 			ExtrinsicFormat::Bare => generic::UncheckedExtrinsic::new_bare(xt.function).into(),
-			ExtrinsicFormat::General(ext_version, tx_ext) =>
+			ExtrinsicFormat::General(ext_version, tx_ext) => {
 				generic::UncheckedExtrinsic::from_parts(
 					xt.function,
 					Preamble::General(ext_version, tx_ext),
 				)
-				.into(),
+				.into()
+			},
 		}
 	}