[fix/cardview-ui-refinement] Cardview UI Refinements

[hosy]

Description

Made some UI refinements to the cardview controller:

• fixed the corner radius (was gone in a version before)
• for larger UI width set a maximum width for the cardview and center the view

Related Issue

Motivation and Context

UI Fetish

How Has This Been Tested?

• open the more menu for an item
• rotate the device
• check on iPhone and iPad
• on iPad place two windows side by side and change the window size and rotate the screen

Screenshots (if appropriate):

Types of changes

• 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 change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.
• Added changelog files for the fixed issues in folder changelog/unreleased

[jesmrec]

QA

Checks done:

Rounded corners && card in:

• iPhone portrait
• iPhone landscape
• iPad full screen portrait
• iPad full screen landscape
• iPad multi window portrait
• iPad multi window landscape

this is approved for me.

Added the missing calens file