[Docs] Clickable

[m-bert]

Description

This PR adds docs for Clickable component

Test plan

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[Copilot]

Pull request overview

This PR documents the new Clickable component in the Gesture Handler 3 docs and updates migration guidance to position Clickable as the unified replacement for legacy/standard button components.

Changes:

• Added a new docs page for Clickable and updated the upgrading guide/buttons docs to recommend it.
• Marked BaseButton, RectButton, and BorderlessButton as deprecated in code comments.
• Extended Clickable with onPressIn / onPressOut callbacks and wired them into the gesture lifecycle; updated the common app example to log them.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
skills/gesture-handler-3-migration/SKILL.md	Updates migration instructions to recommend Clickable for button migrations.
packages/react-native-gesture-handler/src/v3/components/GestureButtons.tsx	Adds @deprecated annotations for standard button components.
packages/react-native-gesture-handler/src/v3/components/Clickable/ClickableProps.ts	Adds onPressIn / onPressOut to Clickable’s public props.
packages/react-native-gesture-handler/src/v3/components/Clickable/Clickable.tsx	Implements onPressIn / onPressOut handling in Clickable.
packages/docs-gesture-handler/docs/guides/upgrading-to-3.mdx	Updates upgrade guide “Buttons” section to introduce/recommend Clickable.
packages/docs-gesture-handler/docs/components/clickable.mdx	Adds a full Clickable docs page with migration examples and props listing.
packages/docs-gesture-handler/docs/components/buttons.mdx	Adds a deprecation warning pointing readers to Clickable.
apps/common-app/src/new_api/components/clickable/index.tsx	Updates example usage to include onPressIn / onPressOut.

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[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 5 comments.

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[m-bert]

Actually, maybe we would like to keep RawButton? This would keep more flexibility for advanced users. But that's just a thought, not strong opinion - I'm not sure if we want to do that (cc @j-piasecki, @akwasniewski)