Log Message:
x11/qterminal: update to 0.17.0

qterminal-0.17.0 / 2021-04-15
=============================
  - Some code cleanup and modernization.
  - Removed two warnings that were shown when QTerminal was started.
  - Added an option to disable bracketed paste mode.
  - Moved the paste-related codes to qtermwidget.
  - Made "Action after paste" clearer and default to "Scrolling \ 
to bottom".
  - Added a tooltip about bracketed paste mode.
  - Added modes for background image.