Break up plot charts when there's a Clear

[teh-cmc]

Integrate plots with the Clear archetype in a useful way.

Before:

24-01-30_10.00.08.patched.mp4

After:

24-01-30_10.24.46.patched.mp4

• Related: Only log Clears when needed in face tracking example #4950
• Related: Not possible to clear data over a temporal range such as a plot #4186

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• I have tested the web demo (if applicable):
  • Using newly built examples: app.rerun.io
  • Using examples from latest main build: app.rerun.io
  • Using full set of examples from nightly build: app.rerun.io
• The PR title and labels are set such as to maximize their usefulness for the next release's CHANGELOG

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[Wumpf]

super nice! And so simple!

[Wumpf]

We might want to adjust the documentation on Clear

[Wumpf]

I mean it hasn't changed fundmentally, but maybe a note that it can have an effect on time series unlike what it says here 🤔
https://github.com/rerun-io/rerun/blob/main/crates/re_types/definitions/rerun/archetypes/clear.fbs#L18

[Wumpf]

thanks! 👍