[Bug] Cannot Add Certificates to Catalyst App

[Uranosphaerite]

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Thanks for making the Catalyst app, I'm glad to have something on MacOS that isn't proprietary.

However I've noticed some issues that make it unusable, most involving file management

• Adding certificates is not possible
  • When clicking add certificate and trying to add the required files, they do not add and the "Import Certificate File" and "Import Provisioning File" buttons don't change. I also attempted to add by URL which did not work, so the files probably can't be put into their directory
• Adding IPA files doesn't work without Full Disk Access on
  • When trying to add IPA files without Full Disk Access on, nothing happens. With it on, the files add as normal
• Files add to the ~/Documents directory
  • The app puts files in the user documents directory, which I find annoying because I'd like to keep it clean. With App Sandboxing on they wouldn't go here, but enabling it caused further problems for me
• The buttons to open directories don't work
  • The buttons to open directories like the Certificates and Archives directory in the settings don't function on MacOS.

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Contributor Checks

• I am willing to attempt to make a pull request to fix this bug

[claration]

I'd expect a lot of issues to occur from the catalyst build (it's extremely new, and didn't really have any changes from the iOS build), thanks for the feedback!

I'll make sure the app is properly sandboxed next update.