Fixed language bug, updated styles, history moved

-The bug with languages containing a "," has been fixed. They should
now be properly displayed in the filters.

-History component moved to smteuscreenxlelements so that it can be
reused by other applications.

-If a user enters and empty search query, the page will go back to
"start mode", this means that the default message: "Please enter search
terms" will become visible.

-Updated with latest styles by Khris.