✨ 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/wud/data.yml

@@ -10,6 +10,9 @@ additionalProperties:
     - Tools
   shortDescZh: 监控Docker基础镜像自动更新
   shortDescEn: Keep your containers up-to-date!
+  description:
+    en: Keep your containers up-to-date!
+    zh: 监控Docker基础镜像自动更新
   type: website
   crossVersionUpdate: true
   limit: 0
@@ -20,4 +23,4 @@ additionalProperties:
 
   website: https://getwud.github.io/wud/
   github: https://github.com/getwud/wud
-  document: https://github.com/getwud/wud
+  document: https://github.com/getwud/wud