Align navbar dropdowns for visibility

[lalquier]

Hi... I couldn't find a way to force the Personal Tools menu to open aligned to the right when it is located all the way to the right of the navbar.
By default, it opens align to the left of the dropdown, which makes it appear outside of the page.

I ended up having to add the bootstrap class to force the menu to align to the right in the PersonalTools.php page, which of course isn't ideal.

[ 'class' => 'p-personal-tools dropdown-menu dropdown-menu-right' ],

The same thing happens to any menu pushed to the right side of the navbar.
Any chance to catch the value of the 'position' parameter and automatically assign the right Bootstrap class?