LatinIME: Remove hardcoded emoji row logic

The hardcoded value was not allowing adjusting the actionbar height, make this follow the overalyable row height

The value is incremented by one as the actionbar is considered one row.

Change-Id: Ia3135bf5a3ef38224ce4e7dadc812faf9efeb69d
Signed-off-by: Mohammad Hasan Keramat J <ikeramat@protonmail.com>