swarm: fix chatview ui state when selecting conversations

src/conversationsadapter.cpp

src/conversationsadapter.h

src/currentconversation.cpp

src/currentconversation.h

src/lrcinstance.cpp

src/mainview/MainView.qml

src/mainview/components/CallStackView.qml

src/mainview/components/ConversationListView.qml

src/mainview/components/ConversationSmartListContextMenu.qml

src/mainview/components/InitialCallPage.qml

src/mainview/components/InvitationView.qml

src/mainview/components/MessageWebView.qml

src/mainview/components/MessageWebViewFooter.qml

src/mainview/components/MessageWebViewHeader.qml

src/mainview/components/OngoingCallPage.qml

src/mainview/components/SmartListItemDelegate.qml

src/messagesadapter.cpp

src/messagesadapter.h