[WEB-2500] feat: Product updates modal (What's new in Plane) (#5690)

* [WEB-2500] feat: Product updates modal (What's new in Plane)

* fix: build errors.

* fix: lint errors resolved.

* chore: minor improvements.

* chore: minor fixes

apiserver/plane/license/api/views/changelog.py

@@ -0,0 +1,35 @@
+# Python imports
+import requests
+
+# Django imports
+from django.conf import settings
+
+# Third party imports
+from rest_framework.response import Response
+from rest_framework import status
+from rest_framework.permissions import AllowAny
+
+# plane imports
+from .base import BaseAPIView
+
+
+class ChangeLogEndpoint(BaseAPIView):
+    permission_classes = [
+        AllowAny,
+    ]
+
+    def fetch_change_logs(self):
+        response = requests.get(settings.INSTANCE_CHANGELOG_URL)
+        response.raise_for_status()
+        return response.json()
+
+    def get(self, request):
+        # Fetch the changelog
+        if settings.INSTANCE_CHANGELOG_URL:
+            data = self.fetch_change_logs()
+            return Response(data, status=status.HTTP_200_OK)
+        else:
+            return Response(
+                {"error": "could not fetch changelog please try again later"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )