Incorrect relative path when saving maps when Studio is run from Windows search

[hrothgar234567]

Describe the bug
The CAB save path is set to be within system32 when Studio is opened via Windows search (as opposed to being run from explorer). This is due to a relative path being passed internally and the application's CWD being dependent on how the software is run.

To Reproduce
Steps to reproduce the behavior:

1. Run Studio from Windows search
2. Try and open/save a CAB map
3. Get a permissions error in the console.

Expected behavior
CAB maps should be saved within <install_dir>\Maps