Fix navigation issues between personal workspace and main workspaces

Here are 2 scenarii that leads to inconsistent interface.

• Navigation between Selection and user workspace
  1. Put a document from main workspace is the selection
  2. Click on the document link from the Selection tab
  3. Navigate to the Personal Workspace
  4. Click on the document link from Selection tab again and notice the navigation tree remains in the Personal Workspace
  5. Click on the refresh button in the navigation tree and observe it is correctly refreshed
  => Personal Workspace should not displayed after navigating to Home: it should display "Back to document base". Clicking on "Document Management" returns tp the user workspace

• Navigation between Home and user workspace
  1. From "Document Management" go to "Personal Workspace"
  2. From there, click on "Home"
  3. From "Home" click on "Personal Workspace"
  4. Try to click on "back to document base"
  => always staying in User Workspace