Exit and Save and Exit button still show up on exit screen and clicking on them freezes the program

[anikuri]

• What Operating System?

• What version of Chrome?

• What version of Recorder's Assistant (GitHub version or Chrome Store version)?

• What steps will reproduce the issue?
  Clicking the Exit button or the Save and Exit button while user is on the exit screen will freeze the program

• What would you expect to be the outcome?

• Any additional details/screenshots to help people to fix any potential bugs?