Launcher: Invert the logic of skip opening of last workfile - OP-6968

[tokejepsen]

Changelog Description

This changes the initial toggle of the Skip opening of last workfile option in the Launcher, to inherit from the ayon+settings://core/tools/Workfiles/last_workfile_on_startup setting.

If an application is not part of the profiles, it'll initially be set to Skip opening of last workfile.

This does not influence existing settings in the launcher, where a user has enabled Skip opening of last workfile.

Testing notes:

1. Test a variety of combinations for ayon+settings://core/tools/Workfiles/last_workfile_on_startup and verify the initial toggle of Skip opening of last workfile is set according to the profiles.
2. Test Skip opening of last workfile is actually skipping opening of the last workfile.
3. Test host without a profile in ayon+settings://core/tools/Workfiles/last_workfile_on_startup, which should initially have Skip opening of last workfile enabled.

NOTE: In order to test the initial toggle of Skip opening of last workfile, it might useful to remove the launcher settings at; C:\Users\[user]\AppData\Local\ynput\ayon\launcher_tool.json

[tokejepsen]

@iLLiCiTiT the code changes looks good, but it does not save "Skip opening of last workfile" checkbox state.

[tokejepsen]

@iLLiCiTiT this is working now. Could you sign off on the code?