Merge branch 'master' into modular-spacing-map

* master:
  D8CORE-1261: Revised table styles. (#617)
  Create auto-label action (#763)
  Add stale action. (#762)
  D8CORE-1623: Adding a mixin and icons for a simple icon before dis… (#690)

.github/auto-label.json

@@ -0,0 +1,11 @@
+{
+  "rules": {
+    "assets": ["core/src/img"],
+    "config": ["package*.json", "webpack.*"],
+    "dev": ["developer", "examples"],
+    "documentation": ["*.md", "*.txt"],
+    "templates": ["*.twig"],
+    "styles": ["*.scss"],
+    "tests": ["tests"]
+  }
+}

.github/workflows/label.yml

@@ -0,0 +1,28 @@
+
+# This workflow will triage pull requests and apply a label based on the
+# paths that are modified in the pull request.
+#
+# To use this workflow, you will need to set up a .github/labeler.yml
+# file with configuration.  For more information, see:
+# https://github.com/actions/labeler/blob/master/README.md
+
+name: PR Labeler
+on:
+  pull_request:
+    types: [opened, synchronize]
+jobs:
+  pr-labeler:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: codelytv/pr-size-labeler@v1
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          xs_max_size: '100'
+          s_max_size: '250'
+          m_max_size: '500'
+          l_max_size: '1000'
+          fail_if_xl: 'false'
+      - uses: banyan/[email protected]
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/stale.yml

@@ -0,0 +1,22 @@
+name: Mark stale issues and pull requests
+
+on:
+  schedule:
+  - cron: "30 1 * * *"
+
+jobs:
+  stale:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/stale@v1
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        stale-issue-message: 'This issue has not seen any activity in 180 days. Marking as stale.'
+        stale-pr-message: 'This pull request has not seen any activity in 180 days. Marking as stale.'
+        stale-issue-label: 'no-issue-activity'
+        stale-pr-label: 'no-pr-activity'
+        days-before-stale: 180
+        days-before-close: 365
+