dev: configuration endpoint for frontend client (#2355)

* dev: configuration endpoint for frontend clients

* dev: configuration enable magic and email/password signup

* dev: update unsplash keys

* dev: add unsplash API and add  env for magic login

apiserver/plane/api/views/config.py

@@ -0,0 +1,40 @@
+# Python imports
+import os
+
+# Django imports
+from django.conf import settings
+
+# Third party imports
+from rest_framework.permissions import AllowAny
+from rest_framework import status
+from rest_framework.response import Response
+from sentry_sdk import capture_exception
+
+# Module imports
+from .base import BaseAPIView
+
+
+class ConfigurationEndpoint(BaseAPIView):
+    permission_classes = [
+        AllowAny,
+    ]
+
+    def get(self, request):
+        try:
+            data = {}
+            data["google"] = os.environ.get("GOOGLE_CLIENT_ID", None)
+            data["github"] = os.environ.get("GITHUB_CLIENT_ID", None)
+            data["github_app_name"] = os.environ.get("GITHUB_APP_NAME", None)
+            data["magic_login"] = (
+                bool(settings.EMAIL_HOST_USER) and bool(settings.EMAIL_HOST_PASSWORD)
+            ) and os.environ.get("ENABLE_MAGIC_LINK_LOGIN", "0") == "1"
+            data["email_password_login"] = (
+                os.environ.get("ENABLE_EMAIL_PASSWORD", "0") == "1"
+            )
+            return Response(data, status=status.HTTP_200_OK)
+        except Exception as e:
+            capture_exception(e)
+            return Response(
+                {"error": "Something went wrong please try again later"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )