adding yml files for crowdin translations

.github/workflows/crowdin-pull.yml

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+name: Crowdin Action
+
+on:
+  push:
+    paths: [ "locals/**" ]
+    branches: [ "main" ]
+  workflow_run:
+    workflows: [ "CodeQL" ]
+    types:
+      - completed
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  crowdin:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Synchronize with Crowdin
+        uses: crowdin/github-action@v2
+        with:
+          upload_sources: false
+          upload_translations: false
+          download_translations: true 
+          localization_branch_name: l10n_crowdin_translations
+
+          create_pull_request: true
+          pull_request_title: 'New Crowdin translations'
+          pull_request_body: 'New Crowdin pull request with translations'
+          pull_request_base_branch_name: 'main'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
+          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}

.github/workflows/crowdin-push.yml

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+name: Crowdin Action
+
+on:
+  push:
+    branches: [ "main" ]
+  workflow_run:
+    workflows: [ "CodeQL" ]
+    types:
+      - completed
+  workflow_dispatch:
+
+jobs:
+  crowdin:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Crowdin push
+        uses: crowdin/github-action@v2
+        with:
+          upload_sources: true
+          upload_translations: true
+          download_translations: false
+        env:
+          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
+          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}

crowdin.yml

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+"project_id_env": "CROWDIN_PROJECT_ID"
+"api_token_Env": "CROWDIN_PERSONAL_TOKEN"
+"base_path": "."
+"base_url": "https://api.crowdin.com"
+
+"preserve_hierarchy": true
+
+files: [
+  {
+    "source": "locales/en/messages.json",
+    "translation": "locales/%two_letters_code%/messages.json",
+  }
+]

locales/en/messages.json

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+{
+    "extName": {
+        "message": "Duo Explained",
+        "description": "extension name."
+    }
+}