Patterns: Explore shuffling content blocks

[annezazu]

Pulling from this prior issue on the same topic #44581, reopening a new issue to explore this in actuality as a shorter term task to achieve rather than waiting for this broader effort #27575

[landwire]

I really like the idea of shuffling pattern! Or basically the idea of having specific content assigned to a different pattern.
But would it also make sense to be able to choose a pattern via dropdown? I think that is useful in the case where there are many patterns to shuffle through, but I know exactly which pattern I would like to choose.

[annezazu]

Noting that shuffling was merged for patterns, which should be an interesting point of feedback around whether and how much to expand shuffling further to content blocks in general: #59251