* ensure tabs order stays consistent
This ensures that whenever you insert or delete tabs before the current
tab, that the current tab stays active with the proper panel.
To do this we had to start rendering the non-visible panels as well, but
we used the `Hidden` component already which is position fixed and
completely hidden so this should not break layouts where using flexbox
or grid.
* update changelog
* fix TypeScript issue
Robin Malfait
b296b73783