Make RenderCoordinator errors recoverable

[jandrokt]

Description

This pull request ensures that any errors that may surge in RenderCoordinator#init are propagated back to the UI and so that an error message is shown instead of crashing the entire client.

Fixes #175 (not sure if fully)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation comments
• My changes generate no new warnings

[mattg42]

Any reason why RendererError is a struct with a separate error kind enum property, instead of just being an enum itself?

[stackotter]

Looking good so far! You'll be a Swifty in no time hahah, thanks @ninjadev64 and @obvgab for helping out while I was asleep 😴

Just a few requested changes which are mostly about simplifying things that that were artefacts of previous attempts.

[stackotter]

Any reason why RendererError is a struct with a separate error kind enum property, instead of just being an enum itself?

Hahah didn't see this until after I submitted my review, you beat me to it

[stackotter]

Awesome, looks much better, thanks! 🎉

[stackotter]

I'll wait for the workflows to complete.