✨ feat(apps): add description field to all application data files

- add english and chinese description fields to all application data files
- standardize yaml formatting and indentation across all files
- remove BOM characters from several files
- fix tag indentation in multiple files
- update architecture field formatting in DecoTV and wechat-selkies
- fix crossVersionUpdate value from False to false in gitlab applications
- improve description field formatting in billion-mail application

apps/windows/data.yml

@@ -10,6 +10,9 @@ additionalProperties:
     - Tool
   shortDescZh: 在 Docker 容器内运行 Windows
   shortDescEn: Windows inside a Docker container
+  description:
+    en: Windows inside a Docker container
+    zh: 在 Docker 容器内运行 Windows
   type: tool
   crossVersionUpdate: true
   limit: 0