Unite handling of right click in mouse release event
Before we had handling on press -> show annot menu if annot
and in release -> show link menu if link or show the genericmenu if nothing
Now we do everything on release and do
show link and annot menu if both
show link menu if link
show annot menu if annot
show generic menu if nothing
It helps with the fact that you can't click on links if there's an
annotation on top, which is a bit of a pain but it makes sense since
annotations usually have more interaction than links, you can select,
move, etc. them
BUGS: 425291
Albert Astals Cid