Feat: Rename and Delete for imported Models ☁️ (#6969)

## Summary

Add Rename and Delete options for Personal Models.

Also updates and standardizes some styles for Cards and adds a simple
Confirmation dialog.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6969-WIP-Feat-Rename-and-Delete-for-custom-Models-2b86d73d36508140a687e929b0544ae6)
by [Unito](https://www.unito.io)

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

src/composables/useFeatureFlags.ts

@@ -9,7 +9,8 @@ export enum ServerFeatureFlag {
   SUPPORTS_PREVIEW_METADATA = 'supports_preview_metadata',
   MAX_UPLOAD_SIZE = 'max_upload_size',
   MANAGER_SUPPORTS_V4 = 'extension.manager.supports_v4',
-  MODEL_UPLOAD_BUTTON_ENABLED = 'model_upload_button_enabled'
+  MODEL_UPLOAD_BUTTON_ENABLED = 'model_upload_button_enabled',
+  ASSET_UPDATE_OPTIONS_ENABLED = 'asset_update_options_enabled'
 }
 
 /**
@@ -31,6 +32,12 @@ export function useFeatureFlags() {
         ServerFeatureFlag.MODEL_UPLOAD_BUTTON_ENABLED,
         false
       )
+    },
+    get assetUpdateOptionsEnabled() {
+      return api.getServerFeature(
+        ServerFeatureFlag.ASSET_UPDATE_OPTIONS_ENABLED,
+        false
+      )
     }
   })