Focus Vertical, Screenreader Doesn't Read the Content of the Tabs

[bit-pro-iew-eui]

• [x] Please check the vertical version https://swiss.github.io/styleguide/en/teaser.html#05-teaser-02-focus-vertical

• [x] And check the horizontal version as well https://swiss.github.io/styleguide/en/teaser.html#05-teaser-01-focus

[gillerr]

The tab selection with Enter key seems to be currently broken

[gillerr]

ChromeVox breaks the tab selection with Enter key

[bit-pro-iew-eui]

Validated, content accessible