adding symlink support

[konsumer]

Related to #111

This does a different kind of check for the dir, so it will work with symlinks and stuff. I have the smallest steamdeck size, but a 1TB SD, so that's where I put things, and Heroic works fine with a sym-link from ~/Games/ to my SD, but not this script.

I can't seem to build it or even run it on steamdeck or in docker (my local machine is an intel mac) so you'll have to do the testing.

[redromnon]

@konsumer I've enabled the workflow for this PR. This means you can also test the new build yourself (as you add newer commits) by heading to GitHub Actions.

[konsumer]

The build from GH action seems to run, not sure why the pyinstaller executable built on my desktop or steamdeck would not. Something weird there.

Using that to test, I get an error that seems unrelated:

Traceback (most recent call last):
  File "func/HeroicBashLauncher.py", line 67, in <module>
  File "func/listinstalled.py", line 96, in listinstalled
  File "func/createlaunchfile.py", line 149, in createlaunchfile
FileNotFoundError: [Errno 2] No such file or directory: '/run/media/mmcblk0p1/Heroic/HeroicBashLauncher/GameFiles/Sable_Heroic.sh'
[4433] Failed to execute script 'HeroicBashLauncher' due to unhandled exception!

Since Heroic Launcher has a "add to steam" option now, that seems to work ok, I think I will just use that.

[redromnon]

@konsumer Are you still working on this PR?

[konsumer]

@konsumer Are you still working on this PR?

No, I am just using the feature built into Heroic Launcher, instead of this. I can take another look, if you need me to. Additionally, I had trouble getting it to build/run on my steamdeck. I can try testing with workflow builds.

[redromnon]

It's all up to you. You can close this PR if you've decided not to implement it.