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/pezframe/rpc/state-trie-migration-rpc/src/lib.rs

@@ -58,8 +58,8 @@ fn count_migrate<'a, H: Hasher>(
 			NodePlan::Leaf { value, .. } | NodePlan::NibbledBranch { value: Some(value), .. } => {
 				total_nb += 1;
 				if let ValuePlan::Inline(range) = value {
-					if (range.end - range.start) as u32 >=
-						pezsp_core::storage::TRIE_VALUE_NODE_THRESHOLD
+					if (range.end - range.start) as u32
+						>= pezsp_core::storage::TRIE_VALUE_NODE_THRESHOLD
 					{
 						nb += 1;
 					}