Problems with Persistent setup on 1024x600 display

User reports to have problems on a window sized 1024x600 to configure the Persistent volume.

I am taking the liberty of assigning this bug to kurono, because of the similar nature of the patch in

Please excuse me kurono if you don’t want to work on it! It is just a suggestion…

Original created by @emmapeel on 7880 (Redmine)

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