Consolidate RDF forms in its own lib

[timea-solid]

moved registrationControl over from solid-ui #778

[Copilot]

Pull request overview

This PR consolidates the “registrationControl” UI (previously provided by solid-ui) into this repository, aligning with the goal of keeping RDF form/registration-related UI in a dedicated library/module.

Changes:

• Added a new src/sharing.js module exporting registrationControl, implemented using solid-logic, rdflib, and solid-ui utilities.
• Updated src/contactsPane.js to import and call the local registrationControl instead of UI.login.registrationControl.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/sharing.js	Introduces the local registrationControl implementation used to manage type index registrations.
src/contactsPane.js	Switches the Sharing footer action to use the locally provided registrationControl.

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[bourgeoa]

Is this function used to declare the contacts link in typeIndex's ?
If this is the case it is used in all app-panes, like chat, issue....

We shall not duplicate these high level functions or move them elsewhere. in solid-logic ?

Can we discuss this in team meeting.

[timea-solid]

@bourgeoa contacts pane is the only place this function is in use.

[timea-solid]

This is not needed at the moment. Reconsider maybe as part of the redesign of the sharing pane.