feature: Add popup window for chat

* feature: Add chat view via QQuickView
* feature: Update chat UI
* fix: Disable chat in navigation panel and bottom bar by default

ChatView/qml/Badge.qml

@@ -23,6 +23,7 @@ Rectangle {
     id: root
 
     property alias text: badgeText.text
+    property alias hovered: mouse.hovered
 
     implicitWidth: badgeText.implicitWidth + root.radius
     implicitHeight: badgeText.implicitHeight + 6
@@ -37,4 +38,10 @@ Rectangle {
         anchors.centerIn: parent
         color: palette.buttonText
     }
+
+    HoverHandler {
+        id: mouse
+
+        acceptedDevices: PointerDevice.Mouse | PointerDevice.TouchPad
+    }
 }