feat: issues v2 endpoint (#2713)

* feat: issue v2 listing endpoint

* dev: issues v3 endpoint

* dev: add permission in the grouped endpoint

* dev: update grouped endpoint

apiserver/plane/api/urls/issue.py

@@ -3,6 +3,8 @@ from django.urls import path
 
 from plane.api.views import (
     IssueViewSet,
+    IssueListEndpoint,
+    IssueListGroupedEndpoint,
     LabelViewSet,
     BulkCreateIssueLabelsEndpoint,
     BulkDeleteIssuesEndpoint,
@@ -35,6 +37,16 @@ urlpatterns = [
         ),
         name="project-issue",
     ),
+    path(
+        "v2/workspaces/<str:slug>/projects/<uuid:project_id>/issues/",
+        IssueListEndpoint.as_view(),
+        name="project-issue",
+    ),
+    path(
+        "v3/workspaces/<str:slug>/projects/<uuid:project_id>/issues/",
+        IssueListGroupedEndpoint.as_view(),
+        name="project-issue",
+    ),
     path(
         "workspaces/<str:slug>/projects/<uuid:project_id>/issues/<uuid:pk>/",
         IssueViewSet.as_view(