ci: add js-beautify javascript check

.github/workflows/js-beautify.yml

@@ -0,0 +1,30 @@
+#SPDX-FileCopyrightText: 2024 Birger Schacht
+#SPDX-License-Identifier: MIT
+
+name: Run javascript linter
+on:
+  pull_request:
+
+jobs:
+  jsbeautify:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      # for poetry caching, we have to install poetry before setting up python
+      - name: Install poetry
+        run: pipx install poetry
+      - uses: actions/setup-python@v4
+        with:
+          cache: 'poetry'
+          cache-dependency-path: "pyproject.toml"
+          python-version: "3.11"
+      - name: Install dev dependencies
+        run: |
+          poetry install --no-root --no-directory --only dev
+      - name: Run js-beautify
+        run: |
+          if find . -name "*.js" -exec poetry run js-beautify -rn {} \; | grep -v unchanged; then
+            exit 1;
+          else
+            exit 0;
+          fi