Fix theme providers not re-rendering their children

[troch]

Description

shouldComponentUpdate on theme providers prevent them to re-render their children if the provided theme hasn't changed. I understand it might have been added to prevent re-rendering all styled fela components if the theme hasn't changed, but React context uses reference identity to determine when to re-render. After checking, create-inferno-context and preact-context also have the same behaviour.

Checklist

Quality Assurance

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• The code was formatted using Prettier (yarn run format)
• The code has no linting errors (yarn run lint)
• All tests are passing (yarn run test)
• There are no flow-type errors (yarn run flow)

Changes

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• Tests have been added/updated
• Documentation has been added/updated
• My changes have proper flow-types

[robinweser]

Would you consider it a patch release? Seems to me that nothing breaks as the new Context API supports that check out of the box.

[troch]

Yep, patch

[troch]

Anything you want me to change on this, or do you have any ETA on publishing?

[troch]

#647 would allow me to have a workaround in the mean time

[TxHawks]

Looks fine to me

[troch]

Thanks a lot for merging and releasing 🙇 !