[WEB-5093] improvement: adds content-based MIME type detection for uploads #7925

- Refactored file upload utilities to use async functions for better handling of file metadata.
- Introduced MIME type detection using the file-type library.
- Updated file service methods to await metadata retrieval.
- Added new dependencies for file-type and updated package.json accordingly.
- Removed deprecated file handling code from utils and adjusted imports across services.

packages/services/package.json

@@ -23,7 +23,8 @@
   "dependencies": {
     "@plane/constants": "workspace:*",
     "@plane/types": "workspace:*",
-    "axios": "catalog:"
+    "axios": "catalog:",
+    "file-type": "^21.0.0"
   },
   "devDependencies": {
     "@plane/eslint-config": "workspace:*",