ci: Improve Docker build workflow and update dependencies

- Add release type detection to distinguish between version tags and edge builds
- Implement separate Docker build steps for release and edge builds with appropriate tags
- Add edge and SHA-based image tags for main branch builds
- Update nginx configuration to support Vietnamese (vi) language routing
- Simplify nginx location block to handle static files and fallback to index.html
- Remove javascript-obfuscator and ts-migrate from dependencies
- Update README with simplified self-hosting instructions using npx http-server
- Consolidate multiple server setup examples into single recommended approach
- Update build preview command to use npm run preview instead of npx serve
- Improve localization files for German, English, Vietnamese, and Chinese
- Update worker files and TypeScript logic files for improved functionality
- Enhance PDF tool pages with better structure and internationalization support

public/locales/zh/common.json

@@ -45,7 +45,7 @@
         },
         "lightningFast": {
             "title": "极速处理",
-            "description": "瞬间处理 PDF，无需等待。"
+            "description": "瞬间处理 PDF, 无需等待。"
         }
     },
     "tools": {
@@ -294,7 +294,7 @@
         "download": "下载:",
         "downloadSelected": "下载选中",
         "exportPdf": "导出 PDF",
-        "uploadPdfFiles": "上传 PDF 文件",
+        "uploadPdfFiles": "选择 PDF 文件",
         "dragAndDrop": "将 PDF 文件拖放到此处，或点击选择",
         "selectFiles": "选择文件",
         "renderingPages": "正在渲染页面...",