When user is logged in to TEAM Engine and returns to langing page, there is no button to start further test runs

[dstenger]

Is your feature request related to a problem? Please describe.
When user is logged in to TEAM Engine and returns to langing page, there is no button to start further test runs or to view old sessions.
Instead, the user has to logout and login again to execute further sessions/ view old sessions.
This behavior was detected on current master branch.

Describe the solution you'd like
There should be a button on the landing page when logged in to return to the sessions list to be able to view old sessions and start new ones.