Rishabh Jain

[Remove Vuetify from Studio] Add / remove admin privileges dialogs

9

Fixes https://github.com/learningequality/studio/issues/5441 ## Summary This PR refactors the **User Privilege Modal** to remove dependency on **Vuetify** (`v-dialog`, `v-form`, etc.) and migrate it to use **Kolibri Design System (KDS)** components such...