Add functionality for loading global user profile where needed

This is so viewing profiles from the invite dialog will work as expected.

src/timeline/TimelineViewManager.cpp

@@ -379,6 +379,12 @@ TimelineViewManager::openInviteUsers(QString roomId)
         emit openInviteUsersDialog(model);
 }
 
+void TimelineViewManager::openGlobalUserProfile(QString userId)
+{
+        UserProfile *profile = new UserProfile{QString{}, userId, this};
+        emit openProfile(profile);
+}
+
 void
 TimelineViewManager::setVideoCallItem()
 {