feat: pending enhancements related to ui

[anfern777]

The below checklist lays out the pending todos regarding the UI:

• [ ] make languages appear dynamically according to selected schema type
• [ ] show error massage in the UI when there are rendering errors
• [ ] add checkbox for ommitJson option
• [ ] remove languages selection section

[stiebitzhofer]

Is this issue still open?

[anfern777]

Yes, it is. We considered it low priority.