docs(textfield): add aria-labels to affix buttons with icons #112
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Fixes WARP-337
Previously the clear and search Affix button would be announced using its icon's title, which describes the appearance of the icon. However, to satisfy the regulations, the Affix button’s aria-label should describe the purpose of the button, i.e. "Clear text", "Search". A11y team doesn't agree with this and says that we should rather describe its appearance, but Uu-tilsynet’s regulations trump those personal views.
In this PR we pass respective aria-labels to Affix components that render as buttons with icons. This means icons title will not be announced, but just the provided aria-label.