Add auto close stalled issues & PRs workflow

- Stales issues & PRs with no activity for 30 days.
- Closes stalled issues in 7 days and PRs in 14 days.
- Changed lock thread message to reflect the lock is due to issue/PR has been closed for 30 days.

Author: iamWing

.github/workflows/close-stale.yml

@@ -0,0 +1,28 @@
+name: Close stale issues and PRs
+
+on:
+  schedule:
+    - cron: '*/10 * * * *'
+
+permissions:
+  issues: write
+  pull-requests: write
+
+jobs:
+  stale:
+    name: Close month old issues and PRs
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v5
+        with:
+          stale-issue-message: 'This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 30 days.'
+          stale-pr-message: 'This PR is stale because it has been open 90 days with no activity. Remove stale label or comment or this will be closed in 30 days.'
+          close-issue-message: 'This issue was closed because it has been stalled for 7 days with no activity. Please open a new issue if the issus is still relevant, linking to this one.'
+          close-pr-message: 'This PR was closed because it has been stalled for 14 days with no activity. Please open a new PR if the issue is still relevant, linking to this one.'
+          days-before-issue-stale: 30
+          days-before-pr-stale: 90
+          days-before-issue-close: 7
+          days-before-pr-close: 14
+          exempt-all-milestones: true
+          exempt-issue-labels: Pinned
+          exempt-draft-pr: true

.github/workflows/lock.yml

@@ -22,12 +22,12 @@ jobs:
           issue-inactive-days: '30'
           exclude-any-issue-labels: 'Discussion'
           issue-comment: >
-            This issue has been automatically locked since there has not been any activity over the past 30 days. Please open a new issue for related bugs.
+            This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.
 
             Please note this issue tracker is not a help forum. We recommend using [Discussions](https://github.com/Devtography/electron-react-typescript-webpack-boilerplate/discussions) for questions.
 
           pr-inactive-days: '30'
           pr-comment: >
-            This pull request has been automatically locked since there has not been any activity over the past 30 days. Please open a new pull request for related bugs.
+            This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new pull request for related bugs.
 
             Please note this issue tracker is not a help forum. We recommend using [Discussions](https://github.com/Devtography/electron-react-typescript-webpack-boilerplate/discussions) for questions.