Description

This issue assumes removing getContactDetailsAsJson from multiple places, replacing it with other approaches, depending on the context:

• MembersTabPanel, ContactsView, MessageView - when requesting popup, only the pupKey should be needed, it's the side handling signal responsible to fetch whatever is needed for given popup. It allows to reduce dependency between the component requesting the popup and the popup itself
• TokenHolderListItem - necessary data should be provided via the model, UI component, especially on the delegate level should not call backend directly
• AddEditSavedAddressPopup.qml the flow should be revised, probably the validation should be externalized
• Activity Center - providing contact info via models instead of accessing them on low-level
• SendContactRequestModal - for further investigation (especially in context of Refactor contacts models to have a single model, remove useless properties and improve updating #16667)

Removing getContactDetailsAsJson, especially from low-level UI components is necessary to reduce dependency on backend and improve isolation. It's also blocker for further simplification like proposed in #16667

Related issue: #16667