fix: add missing DEFAULT_PARTNER_API_SERVER import in DiscoverView

- Import DEFAULT_PARTNER_API_SERVER constant from app constants
- Fix missing import in DiscoverView component

src/views/DiscoverView.vue

@@ -302,7 +302,7 @@ import InfiniteScroll from "../components/InfiniteScroll.vue";
 import ProjectIcon from "../components/ProjectIcon.vue";
 import OnboardingDialog from "../components/OnboardingDialog.vue";
 import TopMessage from "../components/TopMessage.vue";
-import { NotificationIface } from "../constants/app";
+import { NotificationIface, DEFAULT_PARTNER_API_SERVER } from "../constants/app";
 import {
   db,
   logConsoleAndDb,