Created attachment 133901 [details]
screenshot of practice session

Entering thai script is difficult, because the size of the input box (and the later the box the entered word is rendered) is not tall enough.


STEPS TO REPRODUCE
1. Select Thai language
2. Create a word like สมมุติขึ้น
3. Try learning. 

OBSERVED RESULT

The word can be entered, but the pronounciation symbol
-้ will be cut off due to lacking text box size.

EXPECTED RESULT

The pronounciation symbol should be rendered.

Thai language seems to be a bit special, because the symbols
can 'stack up', as seen in the example above (though it does not 
get any higher).

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Fed 33, 5.20
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION