fix(tabs): fix weird behavior when disabling animations on tabstrip

[edusperoni]

This fixes a weird scenario where when animations are disabled the tabstrip doesn't go to the correct position.

The reason for the complicated solution is that if you're midscroll the scrollstate will bug out on 2 and we'll receive an extra onPageScrolled event, so we just forcefully change the tab and ignore the state until the scroll state changes (this ALWAYS changes when a scroll starts, even when in the bugged 2 state, goes either to 1 or 0);

I've tested with this PR:

• change tabs dragging (animation disabled and enabled)
• change tabs tapping on elements (animation disabled and enabled)
• change tabs programmatically (animation disabled and enabled)
• change tabs programmatically with animations disabled WHILE dragging

Very ugly, but gets the job done.