Align globe to the end of the container.

[gravitystorm]

This removes the arbitrary pixel-based alignment of the globe, which did not take tab label translations into account. Instead, we give as much space as possible to the tabs, by aligning to the end of the container (right-hand side on LTR, left hand side on RTL).

Refs #4773

[AntonKhorev]

If it was that easy...

Here's how it's going to look on small screens:

[hlfan]

background-position: bottom right;

And crop away the empty space on the left. Then: