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Review Request #1721 — Created Sept. 5, 2022 and submitted
GObject Introspection and/or gi-docgen automatically add getter/setter-to-property cross references, so there's no need to annotate them manually any more.
PurpleAddContactRequestdocs seems a bit copy/paste from
PurpleAuthorizationRequest, so I tweaked them a bit and it's hopefully a bit clearer.
Also, fix a couple typos in function names.
Built docs and checked properties still had some reference to the getter/setter, and vice versa.