BIS-753: Working on the bar with disk space. Planed the indicator on the same line with the navigation bar.

SSDM-13579: Fixed infinite refresh issue and the fact that even nested files were shown in the list.

SSDM-13579: Made the LeftToolbar component change depending on whether at least one file is selected or not.

SSDM-13579: Made the content of the text cell and the icon stick together in one line and not split to separate lines.