[WEB-5459] feat(codemods): add function declaration transformer with tests (#8137)

- Add jscodeshift-based codemod to convert arrow function components to function declarations
- Support React.FC, observer-wrapped, and forwardRef components
- Include comprehensive test suite covering edge cases
- Add npm script to run transformer across codebase
- Target only .tsx files in source directories, excluding node_modules and declaration files

* [WEB-5459] chore: updates after running codemod

---------

Co-authored-by: sriramveeraghanta <veeraghanta.sriram@gmail.com>

packages/ui/src/typography/sub-heading.tsx

@@ -6,10 +6,13 @@ type Props = {
   className?: string;
   noMargin?: boolean;
 };
-const SubHeading = ({ children, className, noMargin }: Props) => (
-  <h3 className={cn("text-xl font-medium text-custom-text-200 block leading-7", !noMargin && "mb-2", className)}>
-    {children}
-  </h3>
-);
+
+function SubHeading({ children, className, noMargin }: Props) {
+  return (
+    <h3 className={cn("text-xl font-medium text-custom-text-200 block leading-7", !noMargin && "mb-2", className)}>
+      {children}
+    </h3>
+  );
+}
 
 export { SubHeading };