chore: polish config & docs (#14392)

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* **PR #14392** 👈

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.github/workflows/sync-i18n.yml

@@ -1,72 +0,0 @@
-name: Sync I18n with Crowdin
-
-on:
-  push:
-    branches:
-      - canary
-    paths:
-      - 'packages/frontend/i18n/**'
-  workflow_dispatch:
-
-jobs:
-  synchronize-with-crowdin:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-      pull-requests: write
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Crowdin action
-        id: crowdin
-        uses: crowdin/github-action@v2
-        with:
-          upload_sources: true
-          upload_translations: false
-          download_translations: true
-          auto_approve_imported: true
-          import_eq_suggestions: true
-          export_only_approved: true
-          skip_untranslated_strings: true
-          localization_branch_name: l10n_crowdin_translations
-          create_pull_request: true
-          pull_request_title: 'chore(i18n): sync translations'
-          pull_request_body: 'New Crowdin translations by [Crowdin GH Action](https://github.com/crowdin/github-action)'
-          pull_request_base_branch_name: 'canary'
-          config: packages/frontend/i18n/crowdin.yml
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
-          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}
-  i18n-codegen:
-    needs: synchronize-with-crowdin
-    runs-on: ubuntu-latest
-
-    permissions:
-      contents: write
-      pull-requests: write
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          ref: l10n_crowdin_translations
-
-      - name: Setup Node.js
-        uses: ./.github/actions/setup-node
-        with:
-          electron-install: false
-          full-cache: true
-
-      - name: Run i18n codegen
-        run: yarn affine @affine/i18n build
-
-      - name: Commit changes
-        run: |
-          git config user.name "github-actions[bot]"
-          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git add .
-          git commit -m "chore(i18n): i18n codegen"
-          git push origin l10n_crowdin_translations