swarm: swarmify the message view

src/conversationlistmodelbase.cpp

src/conversationlistmodelbase.h

src/conversationsadapter.cpp

src/mainview/MainView.qml

src/mainview/components/ConversationListView.qml

src/mainview/components/InvitationView.qml

src/mainview/components/MessageWebView.qml

src/mainview/components/SmartListItemDelegate.qml

src/mainview/components/UserProfile.qml

src/messagesadapter.cpp

src/messagesadapter.h