Be able to resize the splits to the same size.
Here how it looks like: https://imgur.com/a/uaMQvT6
(better quality: https://xutaxkamay.com/videos/konsole_equalsize.mp4)
Before, it was impossible to resize the splits
with the same size in case they were manually resized.
I have added a new button menu for doing so:
in View -> Split View -> Equal size to all views.
First I wanted to make this as a plugin,
but since I thought it could make splits a bit more useful,
I decided to merge it not as a plugin but internally.