Accessibility Improvements: Focus on validation error

[RachBreeze]

When a validation error occurs the form should bring the first validation error into focus.

Umbraco Version 8.14.0
Umbraco Forms 8.7.4
The Umbraco starter kit

This issue has been edited to separately track the different suggestions, into this issue, #650 and #651

[AndyButland]

Thanks for submitting these @RachBreeze - we'll be taking a look to see if we can get all or some of these in an upcoming release.

Have tackled the first one in the PR linked above. If you happen to be minded to take a look, I've linked here to the single updated file that lives at \App_Plugins\UmbracoForms\Assets\themes\default\umbracoforms.js.

[AndyButland]

Due in 8.9.0 and 9.1.0.

[RachBreeze]

Thank you for picking this up @AndyButland