fix memory cards

[KrahJohlito]

Pull Request checklist

Note: these are not necessarily requirements

• I reformatted the code with clang-format
• I checked to make sure my submission worked
• I am the author of submission or have permission from the original author
• Requires update of the PS2SDK
• Requires update of the gsKit
• Others (please specify below)

Pull Request description

Fixes #497
Update Include for GetRomName()
Remove (now) unused #define
Fix mcID failing to resolve when no OPL folder on root of mcs.
Remove writeMCIcon(), at the point this is called we've already got the mcID so calling openFile() with mc? is pointless.
Fix: in create mode we check if file directory exists and if not create just the dir, not the whole file as a dir.
gui.c fix comparison to int.
Fix error in polish lang file.

Best Regards

[rickgaiser]

Code looks good to me, @J013k can you check functionality?

[J013k]

@rickgaiser I have already done it:
#497 (comment).
Everything is fine.

I only have this "weird thing":
#497 (comment).
But it is not related to this PR, because it has been happening before although not in OPL v1.0.0.
I do not remember exactly when it started....
I can open a new issue for that if you like... or maybe it is not fully an issue?

Additionally also PL translation has been fixed thanks to this PR.

[rickgaiser]

As long as the "weird thing" is not causing any issues and has been a "weird thing" for a long time, I think we can leave it at that. Thanks for the PR and testing, merging.