feat: mark all read notifications (#1963)

* feat: mark all read notifications

* fix: changed string to boolean

* fix: changed snoozed condition

apiserver/plane/api/urls.py

@@ -164,6 +164,7 @@ from plane.api.views import (
     # Notification
     NotificationViewSet,
     UnreadNotificationEndpoint,
+    MarkAllReadNotificationViewSet,
     ## End Notification
     # Public Boards
     ProjectDeployBoardViewSet,
@@ -1494,6 +1495,15 @@ urlpatterns = [
         UnreadNotificationEndpoint.as_view(),
         name="unread-notifications",
     ),
+    path(
+        "workspaces/<str:slug>/users/notifications/mark-all-read/",
+        MarkAllReadNotificationViewSet.as_view(
+            {
+                "post": "create",
+            }
+        ),
+        name="mark-all-read-notifications",
+    ),
     ## End Notification
     # Public Boards
     path(