sip: do not show location sharing (not supported)

Change-Id: I58dd23f33319cc15bc359628134633c5f2ea86f6

src/app/mainview/components/MessageBar.qml

@@ -136,7 +136,7 @@ ColumnLayout {
             Layout.alignment: Qt.AlignVCenter
             Layout.preferredWidth: JamiTheme.chatViewFooterButtonSize
             Layout.preferredHeight: JamiTheme.chatViewFooterButtonSize
-            visible: WITH_WEBENGINE
+            visible: WITH_WEBENGINE && !CurrentConversation.isSip
 
             radius: JamiTheme.chatViewFooterButtonRadius
             preferredSize: JamiTheme.chatViewFooterButtonIconSize

src/app/positionmanager.cpp

@@ -23,6 +23,8 @@ PositionManager::PositionManager(SystemTray* systemTray, LRCInstance* instance,
         set_mapAutoOpening(true);
     });
     connect(lrcInstance_, &LRCInstance::currentAccountIdChanged, [this]() {
+        if (!localPositioning_) // Not yet initialized
+            return;
         localPositioning_->setUri(lrcInstance_->getCurrentAccountInfo().profileInfo.uri);
     });
     set_isMapActive(false);