Rename "Delete" option in context menu

Submitted by Tomasz Gąsior

Assigned to Mike Massonnet

Link to original bug (#13731)

Description

To completly close xfce4-notes user must open context menu of tray icon and choose "Remove". In my opinion this menu item should be called "Close" instead of "Remove". Currently user can be concerned and can think that when he choose this option, all notes will be removed.

xfce4-notes 1.8.1