🤝 Unified sharing across apps (if supported by the app)

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Is your feature request related to a problem? Please describe.
Currently the sharing within various apps differs from an interface perspective and comes with individual share-data implementations besides the user interface aspect. For the moment at best files-based sharing is similar or the same for apps relying solely on file-sharing permissions.

Describe the solution you'd like
Provide a reusable sharing component for apps implementing sharing to be used.
Apps can than based on their supported range of sharing abilities configure the component and its interface and plug it into their app for a consistent share experience.

Remark: This does not address gaps between apps in terms of what types of sharing the app supports, yet sharing within an app might not be capable of providing all options at all times and the sharing itself (beyond setting up the share information) in terms of how the shared info has to be presented to the user differs and is app-specific.

Describe alternatives you've considered
None. The alternative is every app implements sharing on its own, code-wise and concept-wise which is what is the current state