Improve editor element selection and keyboard navigation

[nikku]

Is your feature request related to a problem? Please describe

The form editor at this stage is not keyboard aware: While there is a visual selection that selection does not confirm to the actual (browser) selection. Tabbing with the keyboard focuses embedded links rather than the actual form fields.

Describe the solution you'd like

Improve accessibility by better integrating with native browser focus handling.

• [ ] Selection on the canvas confirms with the keyboard selection
• [ ] Navigation between form elements is possible via tabbing

Describe alternatives you've considered

Ignore this topic.

Additional context

This screencapture shows the current state of keyboard navigation:

[2manoj1]

Are form-js support keyboard - On Select remove form component by pressing delete key?