[WEB-5136] refactor: update admin ESLint configuration and refactor imports to use type imports (#7955)

- Enhanced ESLint configuration by adding new rules for import consistency and type imports.
- Refactored multiple files to replace regular imports with type imports for better clarity and performance.
- Ensured consistent use of type imports across the application to align with TypeScript best practices.

apps/admin/app/(all)/(dashboard)/email/test-email-modal.tsx

@@ -1,4 +1,5 @@
-import React, { FC, useEffect, useState } from "react";
+import type { FC } from "react";
+import React, { useEffect, useState } from "react";
 import { Dialog, Transition } from "@headlessui/react";
 // plane imports
 import { Button } from "@plane/propel/button";