[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/ce/components/common/upgrade-button.tsx

@@ -7,9 +7,15 @@ import { SquareArrowOutUpRight } from "lucide-react";
 import { getButtonStyling } from "@plane/propel/button";
 import { cn } from "@plane/utils";
 
-export const UpgradeButton: React.FC = () => (
-  <a href="https://plane.so/pricing?mode=self-hosted" target="_blank" className={cn(getButtonStyling("primary", "sm"))}>
-    Upgrade
-    <SquareArrowOutUpRight className="h-3.5 w-3.5 p-0.5" />
-  </a>
-);
+export function UpgradeButton() {
+  return (
+    <a
+      href="https://plane.so/pricing?mode=self-hosted"
+      target="_blank"
+      className={cn(getButtonStyling("primary", "sm"))}
+    >
+      Upgrade
+      <SquareArrowOutUpRight className="h-3.5 w-3.5 p-0.5" />
+    </a>
+  );
+}