Remove app name from summary

The summary should be brief and helpful. It also always shows up along side the app name.

So having the app name in the summary again doesn't make sense.

https://github.com/flathub/com.visualstudio.code/blob/master/com.visualstudio.code.metainfo.xml#L9

打开 com.visualstudio.code.metainfo.xml 的第 9 行，检查当前摘要以及应用名称。从摘要中删除多余的应用名称，然后验证元数据仍然有效，并且摘要简短且有帮助。

由索引模型根据 Issue 内容生成。