Add Crowdin automation scripts

.github/workflows/crowdin-commit.yml

@@ -0,0 +1,55 @@
+name: Import translations from Crowdin
+
+on:
+  schedule:
+    - cron: "0 0 1,15 * *"
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+          submodules: recursive
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Setup Crowdin CLI
+        run: |
+          npm i -g @crowdin/cli
+
+      - name: Pull from Crowdin
+        run: |
+          CROWDIN_TOKEN=${{ secrets.CROWDIN_TOKEN }} crowdin download
+
+      - name: Pull origin
+        run: git pull origin master --ff-only # Pull origin in case a commit has been done while updating
+
+      # This makes sure that the site actually builds before pushing to the repo
+      - name: Build site
+        run: npm run docs:build
+
+      - name: Commit changes
+        run: |
+          git config user.name 'github-actions[bot]'
+          git config user.email 'github-actions[bot]@users.noreply.github.com'
+
+          git checkout master
+          git stage .
+          git commit -m "Automatic translation import"
+
+      - name: Push changes
+        uses: ad-m/github-push-action@master
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          branch: master

.github/workflows/crowdin-upload.yml

@@ -0,0 +1,42 @@
+name: Upload source files to Crowdin
+
+on:
+  push:
+    branches: [ master ]
+    paths:
+      - 'docs/**.md'
+      - 'docs/_include/**.md'
+      - 'docs/.vitepress/i18n/strings/en_US.json'
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      # This makes sure that the site actually builds before pushing to Crowdin
+      - name: Build site
+        run: npm run docs:build
+
+      - name: Push to Crowdin
+        uses: crowdin/github-action@v2
+        with:
+          upload_sources: true
+          upload_translations: false
+          download_translations: false
+          crowdin_branch_name: ${{ env.BRANCH_NAME }}
+        env:
+          CROWDIN_TOKEN: ${{ secrets.CROWDIN_TOKEN }}