Page should be centered when doubleclicking from dashboardmode

[jimarthurnilsen]

Describe the bug
When you doubleclick on a page that's not centered in the viewport the viewer goes into pagemode and zooms in the page but the page gets stuck in the outer edges of the viewer instead of getting centered

To Reproduce
Steps to reproduce the behavior:

1. Open the attribution manifest in the demo app
2. Go to dashboard mode
3. Double click on the rightmost image
4. See error

Expected behavior
The page should be centered in the viewer like on single click for going to pagemode

Screenshots
Before doubleclicking the righmost page

After doubleclicking it

Desktop (please complete the following information):

• OS: Windows 10
• Browser: Chrome
• Version: 89.0.4389.90 (Official Build) (64-bit)

Which versions of NGX-Mime, Angular, Material, OS, TypeScript, browsers are affected?
All