feat: clean GitHub workflows (#2391)

# Summary
Clean the `.github` folder, and update the pull request template

.github/PULL_REQUEST_TEMPLATE.md

@@ -21,8 +21,10 @@ Demonstrate the code is solid. Example: The exact commands you ran and their out
 
 | OS      | Implemented |
 | ------- | :---------: |
-| iOS     |    ✅❌     |
-| Android |    ✅❌     |
+| iOS     |    ✅❌      |
+| MacOS   |    ✅❌      |
+| Android |    ✅❌      |
+| Web     |    ✅❌      |
 
 ## Checklist
 

.github/stale.yml

@@ -1,41 +0,0 @@
-# Configuration for probot-stale based on: https://github.com/facebook/react-native/blob/master/.github/stale.yml
-
- # Number of days of inactivity before an Issue or Pull Request becomes stale
-daysUntilStale: 60
-
- # Number of days of inactivity before an Issue or Pull Request with the stale label is closed.
-daysUntilClose: 365
-
- # Issues or Pull Requests.
-exemptLabels:
-  - pinned
-  - security
-  - discussion
-
- # Set to true to ignore issues in a project (defaults to false)
-exemptProjects: false
-
- # Set to true to ignore issues in a milestone (defaults to false)
-exemptMilestones: false
-
- # Set to true to ignore issues with an assignee (defaults to false)
-exemptAssignees: false
-
- # Label to use when marking as stale
-staleLabel: stale
-
- # Comment to post when marking as stale. Set to `false` to disable
-markComment: >
-  This issue has been automatically marked as stale because it has not had
-  recent activity. It will be closed if no further activity occurs. Thank you
-  for your contributions. You may also mark this issue as a "discussion" and I
-  will leave this open.
- # Comment to post when closing a stale Issue or Pull Request.
-closeComment: >
-  Closing this issue after a prolonged period of inactivity. Fell free to reopen
-  this issue, if this still affecting you.
- # Limit the number of actions per hour, from 1-30. Default is 30
-limitPerRun: 30
-
- # Limit to only `issues` or `pulls`
-only: issues