Migrate Firebase Dynamic Links to Deep Links

[flowhorn]

Describe the bug

Firebase Dynamic Links is deprecated and will end working in 2025 (https://firebase.google.com/support/dynamic-links-faq?hl=de), the current implementation doesn't work on web as well.

Possible solution

There is a working alternative:
You can use the app_links package (https://pub.dev/packages/app_links) to receive app_intents from across all platforms (including web & desktop).
You just have to use a specific schema like "https://web.sharezone.net/link?[link_data]" etc.
This would directly implement the functionality for the web version, for android and ios you would just define a uri schema / intent filter for opening the url with the app. Should be pretty straight forward.

One big benefit is also that you don't need any library to generate such links, so a link for a public code could be just like this: "https://web.sharezone.net/link?type="publiccode"&code="ABC123"