Main window: When the user is searching something, refresh the page thumbnails in case one of them contains the keyword(s)

Signed-off-by: Jerome Flesch <jflesch@gmail.com>
Settings window: WorkerResolutionFinder --> JobResolutionFinder

Signed-off-by: Jerome Flesch <jflesch@gmail.com>
Settings window: Fix scanner resolution name display

Signed-off-by: Jerome Flesch <jflesch@gmail.com>