* initial values for computed vars draft
* add tests, add computed_var overloads
* fix darglint
* pass initial to substates when calling dict
* add tests for for child states
* format black
* allow None as initial value
* rename runtime_only to raises_at_runtime
* cleanup unused arguments of ComputedVars
* refactor cached_var to be partial of computed_var
* Accordion Items unique Value
use crypto.randomUUID to generate accordion item value at runtime instead of compile time
* use generateUUID in state.js instead of crypto.randomUUID()
* wip event handlers for state mixins
* fix computed vars, prepare event handler tests
* fix computed vars and event handlers inherited by mixins
* Base is not a mixin
* improve state inheritance tests
* wait for alerts to appear
* poll_for_content to fix flaky ci tests
