Going to a URL for a Code Component that doesn't exist throws error

akhil babu → made their first commit to this issue’s fork.

Signaling this requires FE-only changes.

MR 1008 adds an error message when the code component does not exist.

However user can't navigate to a new code component from the left side bar. The URL changes, but the code editor is not renderd unless 'Try again' is clicked. The error boundary needs to be reset. I belive 'resetBoundary' should be used, but it didn't work (I probably implemented it incorrectly. still learning react 😅)

Created CodeEditor404 component and CodeEditor‎Wrapper to render CodeEditor404 component on 404 error.