Multiple instances can run at the same time

[EranBoudjnah]

Describe the bug
Launching the app several times would lead to multiple instances being run, observable with their tray icons.

To Reproduce
Steps to reproduce the behavior:

1. Launch the app
2. Launch it again
3. Observe two tray icons

Expected behavior
Only a single instance exists at any given time. Subsequent launches should recognize it and not start.

Screenshots
If applicable, add screenshots to help explain your problem.

Aerial Version
1.2.0

[OrangeJedi]

This is a known issue that I have had. Thanks for opening the issue. I am looking at ways to fix it, I will post any updates here.

[VasilisPat]

A code example to prevent this from happening, using the electron native requestSingleInstanceLock method.

Also I recommend opening the config menu when users try to open a second instance of the app, if it is already running.

[ThinkSalat]

I've noticed that mine opens 3 instances at startup. No idea why as I only have one install