fix: add property needed to recursively traverse optional chaining

Author: ony3000

src/core-parts/finder.ts

@@ -158,20 +158,22 @@ export function findTargetClassNameNodes(ast: AST, options: ResolvedOptions): Cl
         recursiveProps = ['left', 'right'];
         break;
       }
-      case 'CallExpression': {
+      case 'CallExpression':
+      case 'OptionalCallExpression': {
         recursiveProps = ['arguments'];
         break;
       }
-      case 'ConditionalExpression':
-      case 'IfStatement': {
-        recursiveProps = ['consequent', 'alternate'];
-        break;
-      }
+      case 'ChainExpression':
       case 'ExpressionStatement':
       case 'JSXExpressionContainer': {
         recursiveProps = ['expression'];
         break;
       }
+      case 'ConditionalExpression':
+      case 'IfStatement': {
+        recursiveProps = ['consequent', 'alternate'];
+        break;
+      }
       case 'ExportDefaultDeclaration':
       case 'ExportNamedDeclaration': {
         recursiveProps = ['declaration'];