`CMD+W` to close the workspace window (but not the entired app) __after__ all individual file tabs are closed (currently forced to use `CMD+SHIT+W`)

[danielweck]

Check for existing issues

• [X] Completed

Describe the feature

I am gradually transitioning from Visual Studio Code for some of my development projects (I love Zed's launch speed and general superior performance, so much so that I can live with a few inconsistencies / learning curve due to different design choices, missing features and bugs 👍 ).

I was/am used to CMD+W closing the VSCode workspace window after all individual file tabs are closed. It is strange to me that an additional shortcut with the SHIFT key modifier is necessary to achieve this in Zed, though I totally appreciate how useful CMD+SHIT+W is when one or more file tabs are still open (saves me hitting CMD+W multiple times until the workspace window finally closes :)

Related issue: https://github.com/zed-industries/zed/issues/4322

If applicable, add mockups / screenshots to help present your vision of the feature

No response