When opening a DropdownMenu OWL component (like the favorite menu, filter
menu) positioned to the right of the screen (left on RTL languages) on a
small screen, the content of the dropdown could easily overflow out of
the viewport, making hard to use or even unreachable.
This commit fixes it by using the middle of the screen as a threshold to
align the dropdown menu to the right (or left in RTL) of the triggering
button.
Note: this fix specifically targets mobile-like/small screens as bigger
one like on desktop would require much precise calculations (and are
not an issue at the time of this commit).
Task ID: 1879566
Romain Estievenart
e1f605bef8