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/src/traits/reality.rs

@@ -261,8 +261,8 @@ pub mod identity {
 		pub fn eq_platform(&self, other: &Social) -> bool {
 			matches!(
 				(&self, &other),
-				(Social::Twitter { .. }, Social::Twitter { .. }) |
-					(Social::Github { .. }, Social::Github { .. })
+				(Social::Twitter { .. }, Social::Twitter { .. })
+					| (Social::Github { .. }, Social::Github { .. })
 			)
 		}
 	}