fix: AutoComplete does not display a red border when a validation error has occurred.

[StevenRasmussen]

🐛 Bug Report

When a validation error occurs on a FluentAutocomplete, there is no red outline that appears around the control similar to all the other controls.

💻 Repro or Code Sample

You can reproduce the issue on the demo site here: https://www.fluentui-blazor.net/Forms

🤔 Expected Behavior

A red outline should surround the control

[vnbaaij]

We had a message on the AutoComplete page that explained that the component is not yet fully compatible with
the EditForm and FluentEditForm elements. Some functionalities, such as error messages, the requirement message or the validation messages are missing. It is still showing the associated icon in the navigation menu. I'm adding back in the message for the next release.

Anyways, that doesn't work yet. Not sure when we'll get to it. We do take PR's...

[vnbaaij]

[joriverm]

i might change/PR this later if my current workload allows it, as i made the validations work. however, it seems i missed the CSS that applies the outline on controls when they are marked invalid. it should be applied to the text-area of the autocomplete.
they are marked as invalid, so its nothing code wise thankfully :)