Add pull request labeler

.github/labeler.yml

@@ -0,0 +1,23 @@
+repo:
+  - '*'
+
+github:
+  - .github/**/*
+
+application:
+  - application/**/*
+
+docs:
+  - docs/**/*
+
+extensions:
+  - extensions/**/*
+
+frontend:
+  - frontend/**/*
+
+scripts:
+  - scripts/**/*
+
+tests:
+  - tests/**/*

.github/workflows/labeler.yml

@@ -0,0 +1,15 @@
+# https://github.com/actions/labeler
+name: Pull Request Labeler
+on:
+  - pull_request_target
+jobs:
+  triage:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/labeler@v4
+        with:
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"
+          sync-labels: true