Add image assets

frontend/lib/views/auth/firebase_auth_view.dart

@@ -31,7 +31,7 @@ class FirebaseAuthView extends StatelessWidget {
               child: Row(
                 mainAxisSize: MainAxisSize.min,
                 children: [
-                  Image.asset('assets/google_logo.svg.png', width: 24),
+                  Image.asset('assets/images/google_logo.svg.png', width: 24),
                   const SizedBox(width: 8),
                   const Text('Sign in with Google',
                       style: TextStyle(fontWeight: FontWeight.w300)),
@@ -56,7 +56,7 @@ class FirebaseAuthView extends StatelessWidget {
               child: Row(
                 mainAxisSize: MainAxisSize.min,
                 children: [
-                  Image.asset('assets/github_logo.svg.png', width: 24),
+                  Image.asset('assets/images/github_logo.svg.png', width: 24),
                   const SizedBox(width: 8),
                   const Text('Sign in with GitHub',
                       style: TextStyle(fontWeight: FontWeight.w300)),

frontend/pubspec.yaml

@@ -71,8 +71,11 @@ flutter:
 
   assets:
   - assets/tree_structure.json
-  - assets/google_logo.svg.png
-  - assets/github_logo.svg.png
+  - assets/images/google_logo.svg.png
+  - assets/images/github_logo.svg.png
+  - assets/images/autogpt_logo.png
+  - assets/images/discord_logo.png
+  - assets/images/twitter_logo.png
   - assets/general_tree_structure.json
   - assets/coding_tree_structure.json
   - assets/data_tree_structure.json