notifications: try to prevent zombies better, markdown, re-org

Modules/Notifications/Center/NotificationEmptyState.qml

@@ -0,0 +1,36 @@
+import QtQuick
+import qs.Common
+import qs.Services
+import qs.Widgets
+
+Item {
+    id: root
+
+    width: parent.width
+    height: 200
+    visible: NotificationService.notifications.length === 0
+
+    Column {
+        anchors.centerIn: parent
+        spacing: Theme.spacingXS
+        width: parent.width * 0.8
+
+        DankIcon {
+            anchors.horizontalCenter: parent.horizontalCenter
+            name: "notifications_none"
+            size: Theme.iconSizeLarge + 16
+            color: Qt.rgba(Theme.surfaceText.r, Theme.surfaceText.g, Theme.surfaceText.b, 0.3)
+        }
+
+        Text {
+            anchors.horizontalCenter: parent.horizontalCenter
+            text: "Nothing to see here"
+            font.pixelSize: Theme.fontSizeLarge
+            color: Qt.rgba(Theme.surfaceText.r, Theme.surfaceText.g, Theme.surfaceText.b, 0.3)
+            font.weight: Font.Medium
+            horizontalAlignment: Text.AlignHCenter
+        }
+
+    }
+
+}