The line height is not being calculated correctly resulting in clipped text display. This did not happen in previous versions.

This happens primarily with non-ASCII charactesr that may have high ascent/descent. With some fonts all characters are clipped though.

I consider this a major regression since it's make the terminal unusable with non-ASCII characters.

Reproducible: Always

Steps to Reproduce:
I've attached a rendering sample for this text:

CVT-B ͜ ⦃tr-extr: rational 3bit literal⦄
RESULT ͜ ⦃tr-extr: binary 2bit literal⦄
OP ͜ bit_or

And also one for this text (in this one the ascii is also being clipped, not just the brackets):

edA-qa@silent-red:/src/leaf/file$ line｢｣                                                                                                                                                               
line｢｣: command not found
edA-qa@silent-red:/src/leaf/file$