[MP-945] Add controlled Section behavior support

[sashuk]

MP-945

Description

Make Section component controlled.

⚠️ There is height glitch, but it happens in master and will be addressed separately.

How to test

• Temploy
• Check the Controlled component story

Screenshots

Kapture.2025-02-24.at.16.11.43.mp4

Development checks

• Add changeset according to guidelines (if needed)
• Double check if picasso-tailwind-merge requires major update (check its README.md)
• Read CONTRIBUTING.md and Component API principles
• Make sure that additions and changes on the design follow Toptal's BASE design, and it's been already discussed with designers at #-base-core
• Annotate all props in component with documentation
• Create examples for component
• Ensure that deployed demo has expected results and good examples
• Ensure the changed/created components have not caused accessibility issues. How to use accessibility plugin in storybook.
• Self reviewed
• Covered with tests (visual tests included)

All development checks should be done and set checked to pass the
GitHub Bot: TODOLess action

PR commands

List of available commands:

• @toptal-bot run package:alpha-release - Release alpha version
• @toptal-anvil ping reviewers - Ping for reviews

PR Review Guidelines

When to approve? ✅

You are OK with merging this PR and

1. You have no extra requests.
2. You have optional requests.
   1. Add nit: to your comment. (ex. nit: I'd rename this variable from makeCircle to getCircle)

When to request changes? ❌

You are not OK with merging this PR because

1. Something is broken after the changes.
2. Acceptance criteria is not reached.
3. Code is dirty.

When to comment (neither ✅ nor ❌)

You want your comments to be addressed before merging this PR in cases like:

1. There are leftovers like unnecessary logs, comments, etc.
2. You have an opinionated comment regarding the code that requires a discussion.
3. You have questions.

How to handle the comments?

1. An owner of a comment is the only one who can resolve it.
2. An owner of a comment must resolve it when it's addressed.
3. A PR owner must reply with ✅ when a comment is addressed.

[changeset-bot]

🦋 Changeset detected

Latest commit: 1946527

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@toptal/picasso-section	Minor
@toptal/picasso	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[sashuk]

@toptal-anvil ping reviewers