Do not crash if the controller and TabBarView are updated at different phases (build and layout) of the same frame. (#104998)

* Use `curly_braces_in_flow_control_structures` for `material`

* include test/material

* add back removed comments

Change the TabController should make both TabBar and TabBarView return to the initial index (#94339)

This reverts commit 5fd259be.

Small change to the calculation of the page to move to when flinging on a TabBarView

This reverts commit d056500b.

This reverts commit 31de052e.

This reverts commit e2490f29.

Tweaked TabBar to provide uniform padding to all tabs in cases where only few tabs contain both icon and text (#80237)