[BUG] Signout broken in local repository

[Z-Qi]

Describe the bug
The current signout seems to have stopped working as intended due to a change in #173, the move from using confirmSignOut() has caused the signout warning to no longer show up. Instead when signout is clicked (where there are modified files) the exit application warning is shown also described in #188.

To reproduce
Steps to reproduce the behavior:

1. Open a local repository with changes
2. Click on signout
3. Exit warning is shown instead of the intended signout warning

Expected behavior / Acceptance criteria
Functionality is returned to prior, signing out produces signout warnings where appropriate.

Screenshots

Desktop (please complete the following information):

• OS: Win10, has also been tested on OSX

Related issues
#188

[lukethompsxn]

Approved! I can reproduce this issue

[Jess-Alcantara]

Approved 👍

[hhagenson28]

I had also noticed this, approved!