we don't confirm before overwriting existing files on Linux

[tomara-x]

one video, two bugs

https://github.com/plugdata-team/plugdata/assets/86204514/c4578b93-74c5-455d-b28c-8e0aa727bfee

[timothyschoen]

This is unfortunately an issue with JUCE on Linux, I can't find the issue but someone reported that saving didn't work at all for them if we added the warnAboutOverwriting flag.

[tomara-x]

dam! juce on linux! close this?

[timothyschoen]

I think we can leave it open, so that I'll remember to check if this is fixed at some point in the future.