Change "Empty Search" to just "Search" to handle searches with no search text
Summary:
BUG: 387854
The pre-defined searches (Documents, Videos, etc) all default to no search text. https://cgit.kde.org/dolphin.git/commit/?id=702429ac8e64a5aff4e110a56f526b96ecb795fd changed their window title from "baloosearch - /" to "Empty Search", but the search isn't really empty; it just lacks a search string. It's still looking for documents, or videos, or whatever.
Test Plan:
Is it too late to get this into 5.12?
Tested in KDE Neon. Before:
After:
Reviewers: Dolphin, elvisangelaccio, broulik
Reviewed By: broulik
Differential Revision: https://phabricator.kde.org/D9305