Colors and logos of notes and tips need to be updated.

[writinwaters]

Light mode: Dark mode:

:::note Blabla ::: The current color and logo of note: Reference link:

• https://docs.taichi-lang.org/docs/accelerate_python
• https://docs.taichi-lang.org/docs/doc_writing#custom-containers

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:::tip Blabla ::: The current tip logo: Reference link: https://docs.taichi-lang.org/docs/doc_writing#custom-containers

We don't use the colors of "info", because for now we don't have this type of note.