[ui] Number of rows in the log section

[ammnt]

Hello,

please, add a function to select the number of lines on the journal section: 5,10, 25, 50, 100, 200, 250, etc. There are currently very few default rows on this page😩

Thank you.

Cheers!

[Aikatsui]

see #1915

[ameshkov]

Since we're going to implement "infinite scroll" there, this option would be redundant.