Updated in call ui for EC calls with text to not get cropped.

screenshots:
short message (before cl): http://screen/pMAgfV540Y5
short message (after cl): http://screen/VN3TVTBYjPN

long message (before cl): http://screen/V8jSApXmEC2
long message (after cl): http://screen/Vd7zyf2JGvP

long message zoomed (before cl): http://screen/urWDNGACgOf
long message zoomed (after cl): http://screen/i2xEch8HHoq

PiperOrigin-RevId: 159968371
Change-Id: Icaf0a69949b206efd8d08001065cfb4ccdcb1726