feat: add lucide-react icons to QuickActions component

- Integrated lucide-react icons for QuickActions, replacing SVGs with Plus, LayoutGrid, Calendar, and Settings icons for improved UI consistency.
- Updated package.json and package-lock.json to include lucide-react dependency.
- Marked the Gravatar task as complete in TODO.md for better tracking of UI/UX improvements.

package-lock.json

@@ -16,6 +16,7 @@
         "clsx": "^2.1.1",
         "date-fns": "^4.1.0",
         "emoji-regex": "^10.5.0",
+        "lucide-react": "^0.544.0",
         "next": "15.5.3",
         "next-auth": "^4.24.11",
         "prisma": "^6.16.1",
@@ -6048,6 +6049,14 @@
         "node": ">=10"
       }
     },
+    "node_modules/lucide-react": {
+      "version": "0.544.0",
+      "resolved": "https://registry.npmjs.org/lucide-react/-/lucide-react-0.544.0.tgz",
+      "integrity": "sha512-t5tS44bqd825zAW45UQxpG2CvcC4urOwn2TrwSH8u+MjeE+1NnWl6QqeQ/6NdjMqdOygyiT9p3Ev0p1NJykxjw==",
+      "peerDependencies": {
+        "react": "^16.5.1 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/magic-string": {
       "version": "0.30.19",
       "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.19.tgz",