Tweak text sizes and padding to prevent clipping

Bug: 22206007

Some languages contain oversized glyphs which may inadvertently be
clipped when displayed by AlignedTextView. The updated text sizes and
padding values should ensure that enough room is always reserved for
these glyphs (even when font scaling is set to HUGE).

Change-Id: Ic62df3104d033b1eafcf7d83f7e91d5329c8be70