IncrementalSearchBox: fix rendering during terminal scroll
Summary:
Prevent search widget from moving when scrolling session.
BUG: 396119
Test Plan:
- Run seq 1000
- Turn on search
- Hold Shift+Up, Shift+Down
Actual result: the search box scrolls with terminal contents
Expected result: only terminal should scroll, the box should remain
unchanged
Reviewers: Konsole, hindenburg
Reviewed By: Konsole, hindenburg
Subscribers: hindenburg, ngraham, konsole-devel
Tags: Konsole
Differential Revision: https://phabricator.kde.org/D14038