feat: introduce deferUpdates option for useTask$

[Varixo]

Add new option for useTask$ blockRender. It helps managing animations and view transitions

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Latest commit: 0782caa

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[wmertens]

now that I read it again, blockRender sounds like rendering blocks, not blocking render :)

Maybe just blocking?

[wmertens]

three thumbs up, LGTM except maybe the option name

[gnemanja]

Maybe it would be nice to include a description which says that useTask will always block rendering when executed on server. This option is only for browser

[Varixo]

now that I read it again, blockRender sounds like rendering blocks, not blocking render :)

Maybe just blocking?

changed to deferUpdates after talking to Jack

[Varixo]

We need to talk about this change if it should be default to match v1 behavior.
Imo the v1 behavior is not intuitive and we could change it.

[wmertens]

We decided that the v1 blocking behavior should stand and we need to enable non-blocking via an option.

The alternative is creating a Promise but not returning it, but that doesn't feel great so the option is still useful

[gioboa]

It looks awesome to me ✅🙏

[wmertens]

I'd like to rename the option to something that needs to be set to true instead of false.
concurrent would work but it doesn't explain that it's for render only, it still goes synchronous in the component render

[wmertens]