feat: github integration (#315)

* feat: initiate integrations

* feat: initiate github integration create models for the same

* feat: github integration views

* fix: update workspace integration view to create bot users

* refactor: rename repository model

* refactor: update github repo sync endpoint to create repo and sync in one go

* refactor: update issue activities to post the updates to segway hook

* refactor: update endpoints to get project id and add actor as a member of project in repo sync

* fix: make is bot as a read only field

* fix: remove github repo imports

* fix: url mapping

* feat: repo views

* refactor: update webhook request endpoint

* refactor: rename repositories table to github_repositories

* fix: workpace integration actor

* feat: label for github integration

* refactor: issue activity on create issue

* refactor: repo create endpoint and add db constraints for repo sync and issues

* feat: create api token on workpsace integration and avatar_url for integrations

* refactor: add uuid primary key for Audit model

* refactor: remove id from auditfield to maintain integrity and make avatar blank if none supplied

* feat: track comments on an issue

* feat: comment syncing from plane to github

* fix: prevent activities created by bot to be sent to webhook

* feat: github app installation id retrieve

* feat: github app installation id saved into db

* feat: installation_id for the github integragation and unique provider and project base integration for repo

* refactor: remove actor logic from activity task

* feat: saving github metadata using installation id in workspace integration table

* feat: github repositories endpoint

* feat: github and project repos synchronisation

* feat: delete issue and delete comment activity

* refactor: remove print logs

* FIX: reading env names for github app while installation

* refactor: update bot user firstname with title

* fix: add is_bot value in field

---------

Co-authored-by: venplane <venkatesh@plane.so>

app.json

@@ -6,8 +6,16 @@
   "website": "https://plane.so/",
   "success_url": "/",
   "stack": "heroku-22",
-  "keywords": ["plane", "project management", "django", "next"],
-  "addons": ["heroku-postgresql:mini", "heroku-redis:mini"],
+  "keywords": [
+    "plane",
+    "project management",
+    "django",
+    "next"
+  ],
+  "addons": [
+    "heroku-postgresql:mini",
+    "heroku-redis:mini"
+  ],
   "buildpacks": [
     {
       "url": "https://github.com/heroku/heroku-buildpack-python.git"
@@ -74,4 +82,4 @@
       "value": ""
     }
   }
-}
+}