Revert automatic grep job execution from Find in Files history

Summary:

• raise of output view is suppressed for jobs from history
• only search parameters are displayed, actual search can be redone with "Refresh"
• population of list is still deferred until all projects are loaded to ensure correct display of search description

BUG: 384899

Test Plan:

• on restart no search is performed, but can be triggered by "Refresh"
• output view stays closed on startup

Reviewers: KDevelop, brauch

Reviewed By: KDevelop, brauch

Subscribers: brauch, kdevelop-devel

Differential Revision: https://phabricator.kde.org/D7945