[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

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

apps/admin/app/(all)/(dashboard)/authentication/gitea/page.tsx

@@ -15,7 +15,7 @@ import { useInstance } from "@/hooks/store";
 import type { Route } from "./+types/page";
 import { InstanceGiteaConfigForm } from "./form";
 
-const InstanceGiteaAuthenticationPage = observer(() => {
+const InstanceGiteaAuthenticationPage = observer(function InstanceGiteaAuthenticationPage() {
   // store
   const { fetchInstanceConfigurations, formattedConfig, updateInstanceConfigurations } = useInstance();
   // state