chore: remove `Identicon` component

ui/shared/Identicon.qml

@@ -1,32 +0,0 @@
-import QtQuick 2.13
-
-import utils 1.0
-
-Rectangle {
-    id: roundedImage
-    property url source:"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAYAAAAeP4ixAAAAg0lEQVR4nOzXwQmAMBAFURV7sQybsgybsgyr0QYUlE1g+Mw7ioQMe9lMQwhDaAyhMYTGEJqYkPnrj/t5XE/ft2UdW1yken7MRAyhMYTGEBpDaAyhKe9JbzvSX9WdLWYihtAYQuMLkcYQGkPUScxEDKExhMYQGkNoDKExhMYQmjsAAP//ZfIUZgXTZXQAAAAASUVORK5CYII="
-    width: 40
-    height: 40
-    color: Style.current.background
-    radius: 50
-    border.width: 1
-    border.color: Style.current.borderSecondary
-
-    Image {
-        width: parent.width
-        height: parent.height
-        fillMode: Image.PreserveAspectFit
-        anchors.horizontalCenter: parent.horizontalCenter
-        anchors.verticalCenter: parent.verticalCenter
-        source: roundedImage.source
-        mipmap: true
-        smooth: false
-        antialiasing: true
-    }
-}
-
-/*##^##
-Designer {
-    D{i:0;formeditorColor:"#4c4e50";formeditorZoom:2}
-}
-##^##*/