Refresh icons view when switching between portrait and landscape

When switching between portrait and landscape modes, the icons view
needs to be updated to re-arrange the icons based on updated width.

Added a new method for refreshing icons view mode. This method is
called during orientation changes.

Issue-Id: FEIJ-492

Change-Id: I9c95357a7d4f57b223147e774838e4fdc19f5e89