Runstop interface button behavior extremely flaky

[bm-hellorobot]

Seen on several new robots - the runstop button when using the web interface is extremely flaky, works probably less than half the time, and when it fails usually freezes the robot. Notably, cycling the physical runstop button on and off again resolves the issue and the interface becomes usable again almost always.

Failures can be triggered in many different ways

• Clicking too fast usually causes a failure
• Seems possibly more reliable on localhost and less reliable on a mediocre wifi connection
• Often (but not always) you can hear the motor whine turn off, as it would when runstopped; but neither the physical button nor the interface button indicate a runstop. Interface becomes unresponsive and comes back after the physical runstop is cycled.