The previous implementation seems to have been broken by Imgui updates.
There is also some improvement in focus handling and also a bug in
replace where the last match was not being replaced has been fixed.
Fixed also slowdown in large files when only one char was typed by not
searching until enter has been pressed.
Added key repetitions for enter and arrows to be able to handle large
number of matches and fixed some formatting problems.
1e17422f5e