Sidepanel simulation status is not selected when there are multiple simulations.

[berland]

To reproduce:

• Run poly-example with at least two runs

Then the "Simulation status" button will yield a dropdown when clicked.

• Select one of the simulation status reports from the dropdown
• Click "Manage experiments" (or any other than Simulation status)
• Click "Simulation status" (do not select from the dropdown yet)
• • Observe that the previous button is not unselected, so at this moment we have two selected buttons.
• Click one of the runs in the dropdown
• • Observe that the previous selected button is still erroneously active while the window shows the correct information.