fix: export modal path handling

[IMB11]

• Switches export modal file selector to use hierarchical selection, knowing what is excluded from a folder rather than storing all files selected

[modrinth-bot]

Pull request changelog

App

Added

Changed

Deprecated

Removed

Fixed

• Fixed some performance issues in the modpack export modal.
• The modpack export modal is now excluding files which should not be bundled within the mrpack file.

Security

Website

Added

Changed

Deprecated

Removed

Fixed

Security

Hosting

Added

Changed

Deprecated

Removed

Fixed

Security

[modrinth-bot]

Frontend previews

Last deployed commit is 90a5ff2e6dcfea0bd59dd601f5c75b83487e02da

Persistent

Environment	URL
staging	https://pr-6949-staging-frontend.modrinth.workers.dev
production	https://pr-6949-frontend.modrinth.workers.dev
storybook	https://pr-6949-storybook.modrinth.workers.dev

Latest commit

Environment	URL
staging	https://git-90a5ff2e-staging-frontend.modrinth.workers.dev
production	https://git-90a5ff2e-frontend.modrinth.workers.dev
storybook	https://git-90a5ff2e-storybook.modrinth.workers.dev