Add browser tests for the "add form" story.

Authored by Jakob_WMDE on Thu, Apr 20, 3:50 PM.

Description

Add browser tests for the "add form" story.

This browser test only tests the UI part of the story without checking
that the new form gets persisted.

Bug: T162338
Change-Id: I9527ddd13933c7acb43f4ac6a1dc7ac43d6cd8e3

Details