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

pezkuwi/node/core/pvf/src/security.rs

@@ -105,8 +105,8 @@ impl FullSecurityStatus {
 	}
 
 	fn all_errs_allowed(&self) -> bool {
-		!self.partial.secure_validator_mode ||
-			self.errs.iter().all(|err| err.is_allowed_in_secure_mode(&self.partial))
+		!self.partial.secure_validator_mode
+			|| self.errs.iter().all(|err| err.is_allowed_in_secure_mode(&self.partial))
 	}
 
 	fn errs_string(&self) -> String {
@@ -141,8 +141,9 @@ impl SecureModeError {
 		match self {
 			// Landlock is present on relatively recent Linuxes. This is optional if the unshare
 			// capability is present, providing FS sandboxing a different way.
-			CannotEnableLandlock { .. } =>
-				security_status.can_unshare_user_namespace_and_change_root,
+			CannotEnableLandlock { .. } => {
+				security_status.can_unshare_user_namespace_and_change_root
+			},
 			// seccomp should be present on all modern Linuxes unless it's been disabled.
 			CannotEnableSeccomp(_) => false,
 			// Should always be present on modern Linuxes. If not, Landlock also provides FS