fix(magnification panel): magnifier size title may be cut off when large font size

Like b/280162065 panel diagonal title issue, the size title may be
truncated when different localization or font size. Therefore, we change
the title textview to be a single line marquee so we can avoid the cut off.

Bug: 328519260
Flag: NA
Test: manually
Change-Id: I723d4d2ea016758919c9ad193c10905cb933c014