feat: add public URL endpoint and update user type to include password status

backend/server/main/views.py

@@ -1,6 +1,10 @@
 from django.http import JsonResponse
 from django.middleware.csrf import get_token
+from os import getenv
 
 def get_csrf_token(request):
     csrf_token = get_token(request)
     return JsonResponse({'csrfToken': csrf_token})
+
+def get_public_url(request):
+    return JsonResponse({'PUBLIC_URL': getenv('PUBLIC_URL')})