docs: Toast/TabsPicker docs fixes, prevent Autocomplete input focus on mobile (#9243)
* update Toast examples to work when user is on tailwind
* hide asterix from screenreaders if required is applied to the field already
still needed for cases like Picker since those dont support aria-invalid since they are buttons
* add default class name to tab picker so it doesnt pick up react-aria-select styles
* only focus autocomplete input field if click or keyboard
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Co-authored-by: Devon Govett <devongovett@gmail.com>