Proposal for "dashboard" and "tile" roles

[MarioBatusic]

Description of feature request

[F2F Candidate] More and more web applications use dashboards as their main access-point to its data and processes.

I propose a role dashboard and its sub-role tile or card as required semantics and as the startpoint on the way to future HTML elements for these already used constructs.

See further thoughts to this proposal.

Will this require a change to CORE-AAM?

Yes.

Will this require a change to the ARIA authoring guide?

Yes.