[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>

apps/admin/app/(all)/(dashboard)/header.tsx

@@ -10,7 +10,7 @@ import { BreadcrumbLink } from "@/components/common/breadcrumb-link";
 // hooks
 import { useTheme } from "@/hooks/store";
 
-export const HamburgerToggle = observer(() => {
+export const HamburgerToggle = observer(function HamburgerToggle() {
   const { isSidebarCollapsed, toggleSidebar } = useTheme();
   return (
     <div
@@ -22,7 +22,7 @@ export const HamburgerToggle = observer(() => {
   );
 });
 
-export const AdminHeader = observer(() => {
+export const AdminHeader = observer(function AdminHeader() {
   const pathName = usePathname();
 
   const getHeaderTitle = (pathName: string) => {