Fix/report session video size

[martingrossmann]

Description

In case of session videos in portrait mode (mobile devices) the videos are to height for the session view. This change fixes the video tag height according screen size.
I also fixed the width of the capability view behind the video. For some appium servers you need an authentication key which expand the view. The y scrolling was not working without width: .. px.

New view:

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[Zsar]

Should these really be pixel values? I'd expect some - any - relative size.