feat: add crowdin sync to repo (#472)

* feat: crowdin.yml file

* feat: gh action to sync with crowdin

* precommit

Author: lwasser

.github/workflows/crowdin_sync.yml

@@ -0,0 +1,28 @@
+name: Crowdin Sync
+
+on:
+  workflow_dispatch:
+
+jobs:
+  sync-translations:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Sync with Crowdin
+        uses: crowdin/github-action@v2
+        with:
+          upload_sources: true
+          upload_translations: false
+          download_translations: true
+          localization_branch_name: l10n_crowdin_translations
+          create_pull_request: true
+          pull_request_title: "Crowdin: New translations"
+          pull_request_body: "Crowdin synced updated translations via GitHub Action."
+          pull_request_base_branch_name: "main"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_TOKEN_CROWDIN }}
+          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
+          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}

crowdin.yml

@@ -0,0 +1,7 @@
+project_id: "${{ secrets.CROWDIN_PROJECT_ID }}"
+api_token: "${{ secrets.CROWDIN_PERSONAL_TOKEN }}"
+
+files:
+  - source: /locales/en/LC_MESSAGES/messages.po
+    translation: /locales/%two_letters_code%/LC_MESSAGES/messages.po
+    type: gettext