[ticket/377] Align portal columns right-to-left in rtl languages

With the old table layout, the left columns always displayed on the right
in rtl languages and vice-versa for the left right column. This should be
changed back in the tableless layout.

B3P-377
Merge pull request #379 from marc1706/ticket/377

[ticket/377] Align portal columns right-to-left in rtl languages