fix missing or faulty tag-names in generated components ('ui5-timeline-item', 'ui5-notification-overflow-action')

Author: Lukas742

packages/main/src/webComponents/NotificationOverflowAction/__snapshots__/NotificationOverflowAction.test.tsx.snap

@@ -0,0 +1,9 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`NotificationOverflowAction Basic Test (generated) 1`] = `
+<DocumentFragment>
+  <ui5-notification-overflow-action
+    design="Transparent"
+  />
+</DocumentFragment>
+`;