Theme Next: Components rounded corner support

[origami-z]

Tasks

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1. Interactive card: 4 corners rounded (currently accent bar is square) Card accent bar in theme next when corner is rounded is leaking through border #3514
2. Fix SegmentedButtonGroup with corner rounded #3523
   +0
3. Pagination

[origami-z]

Move dates to meet 7 Jul unstable provider removal date

[bhoppers2008]

@bhoppers2008 @dplsek to prioritise verification work for the theme release.

[navkaur76]

9th July - discussed in the attributes kick off meeting for #3536, pending solutions for:

• accent bar bleeding from rounded corners issue to be addressed in card
• pagination corners spec

[navkaur76]

To be closed as:

• Card accent bar in theme next when corner is rounded is leaking through border #3514 is being addressed as part of an overall card consolidation ticket - #3875
• Pagination spec to be updated and tracked within #3874 instead

Corner verification work for existing components in #3536 is complete.