* ensure chaning the `selectedIndex` tabs properly wraps around
We never want to use and index that doesn't map to a proper tab.
This commit also makes the implementation similar for both React and
Vue.
* add tests to prove the underflow and overflow wrapping
* drop updating the index manually
This is already adjusted when tabs change internally. You can still
manually change it of course, but for these tests that doesn't matter
and cause different results.
* update changelog
Robin Malfait
e2294f5280