D8056: Improve usability of "Open With" dialog by adding option to filter the application tree

[Simone Gaiarin]

simgunz edited the test plan for this revision.
simgunz added a reviewer: dfaure.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D8056

To: simgunz, dfaure
Cc: #frameworks