Deep linking support

[alicerunsonfedora]

• I know that I'm requesting a feature for Codename Starlight (SwiftUI) and not for Hyperspace Desktop (JS).

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We should be able to have support for deep linking, so that we can include programmatic navigation in the app.

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We should be able to use the handleUrl in the main app view to write the deep linking logic.

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n/a

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I've looked into some initial research on it, and there doesn't seem to be a good way to do this app-wide AFAIK.