Add list of all project diagnostics in the dock

[bnjjj]

Hello, as I'm coming from vscode and I'm using Zed for more than a month I first tried to accomodate myself to the way zed is working with diagnostics with the multibuffer but I still can't get rid of an old habit I had on VSCode which was very useful and making me more efficient when refactoring especially. It's about the problems panel available in VSCode. It lists all the problems on the current project. Which is great because the workflow I like to have when refactoring or writing my code is to keep my focus on my code and the current opened files and I really like to see the list of all other errors on the project without having to do some back and forths on another tab. That's useful to directly spot for example if other errors are the same kind of errors or not and you can easily see the number of errors decreasing, it's pretty satisfaying.

So as a side project I started to implement it quickly in Zed to know if it was easy to do and now I have a POC I wanted to know if it's something that could interest you or make sense. I recorded my screen to show you a demo of what I have right now. It's very early stage so not really beautiful and I need to add more filtering and so one but you get the idea.

screen_zed.mov

I know it's not part of your roadmap and priorities but if it's something you would be interested to then I can continue my work to make it more production ready and open a PR with my code. I'm doing this when I have free time so it won't be done tomorrow but I can make some progress over the next few weeks.

Can't wait to have your feedback :)

[beniaminzagan]

Hey, nice job so far!

Some ideas:

• right clicking on an item could give the user the action menu (same one we see when we do cmd ) or only the fix option
• fix all option?