Add admin model `LilcityUserSettings`

apps/user/admin.py

@@ -1,3 +1,8 @@
 from django.contrib import admin
 
-# Register your models here.
+from .models import LilcityUserSettings
+
+
+@admin.register(LilcityUserSettings)
+class LilcityUserSettingsAdmin(admin.ModelAdmin):
+    pass