Support hot reloading with Inject

[mplorentz]

Description

This adds a framework for hot reloading to Nos. I tried it out in my hackathon project and thought it might be useful as a faster, more reliable alternative to SwiftUI previews.

How to test

1. Follow the new instructions to set up hot reloading in the CONTRIBUTING.md.
2. Run the Nos scheme in the simulator.
3. (Optional) open the console log and filter it by "💉" to see the Inject logs. If you set it up correctly you should see something like:

💉 InjectionIII connected /Users/matt/v/nos/Nos.xcodeproj
💉 Watching files under the directory /Users/matt/v/nos`

If not, maybe you need to watch the correct directory from the InjectionIII menubar app.

5. Open HomeFeedView
6. Change the background color to something bright like red
7. Hit command-s to save. You should see Inject recompile the file in the logs
8. For some reason our views don't update right away, but if you tap another tab and then tap the home tab again the background color should change.

Screenshots/Video

(ignore the fact that in the video the simulator is showing my hackathon branch)

Screen.Recording.2024-12-27.at.10.00.28.AM.mov

[mplorentz]

shoot this is on the wrong branch. I will have to fix it later.

[mplorentz]

Maybe this documentation is too light, but I am kinda rushing to throw this PR out there. Maybe the reviewer can tell me if it's enough or document the steps they had to take.

For instance, the first thing their documentation says to do is add some linker flags which is already done. So at least that part is superfluous. It's been a while since I set this up so I don't remember what I did exactly.