tint2conf: Fix window and about icons
Generic icon displayed for tint2conf for me; "taskbar" isn't the name of an icon I have on my system.
Use installed tint2conf instead.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Generic icon displayed for tint2conf for me; "taskbar" isn't the name of an icon I have on my system.
Use installed tint2conf instead.