Added Roles and Permissions. Some minor UI fixes

backend/settings/router.py

@@ -1,6 +1,6 @@
 from fastapi import APIRouter, Depends
 from auth.models import TokenPayload
-from auth.dependencies import require_melody_access, require_viewer
+from auth.dependencies import require_permission
 from settings.models import MelodySettings, MelodySettingsUpdate
 from settings import service
 
@@ -9,7 +9,7 @@ router = APIRouter(prefix="/api/settings", tags=["settings"])
 
 @router.get("/melody", response_model=MelodySettings)
 async def get_melody_settings(
-    _user: TokenPayload = Depends(require_viewer),
+    _user: TokenPayload = Depends(require_permission("melodies", "view")),
 ):
     return service.get_melody_settings()
 
@@ -17,6 +17,6 @@ async def get_melody_settings(
 @router.put("/melody", response_model=MelodySettings)
 async def update_melody_settings(
     body: MelodySettingsUpdate,
-    _user: TokenPayload = Depends(require_melody_access),
+    _user: TokenPayload = Depends(require_permission("melodies", "edit")),
 ):
     return service.update_melody_settings(body)