[Feature Request]: Split pages into columns

[rescoldo]

Description

To improve the overall layout and make the page more customizable, we request the ability to split pages into columns like in Notion. Evidence is attached.

https://youtu.be/xCrTo89jMpk

Use case

Anything else?

No response

Are you willing to submit a PR?

• Yes I'd like to help by submitting a PR!

[affine-issue-bot]

Issue Status: 🆕 *Untriaged

*🆕 Untriaged

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