Two user-reported bugs from on-device testing.
The favourites overflow menu carried `constraints: tightFor(38x42)`,
which sizes the POPUP rather than the button -- every item was clipped to
its first letter, so users saw "M" and "E" instead of the labels. The
existing test passed throughout because find.text matches a Text widget
whether or not it is visually clipped; the new guard measures the laid-out
width instead.
The bottom bar's ink splash had no shape, painting a hard square over the
icon, and the active tab's lift, dim, icon size and label all changed
instantly while the balloon slid -- the balloon glided and its contents
teleported. All four now share the balloon's duration and curve.
FreeTLab
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