update ru translation
update ru translation

Change-Id: I5fc5d0facf9828c806602965911b17ae2f256754

djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,djbender/canvas-lms