[docs] State management

[m-bert]

Description

This PR handles state management in our docs:

• Moves information about states to "under the hood" section
• Rewrites entire states & events page to focus more on callbacks
• Updates GestureStateManager entry and moves it to fundamentals
• Merges manual gesture guide with manual gesture docs

Test plan

Read docs 🤓

[Copilot]

Pull request overview

Updates the React Native Gesture Handler documentation to better explain gesture state management by shifting focus from raw states/events to callback-driven lifecycle descriptions, and consolidating manual gesture guidance.

Changes:

• Reworks state-related docs by moving handler state details under “under the hood” and introducing a new “callbacks & events” fundamentals page.
• Moves/rewrites GestureStateManager docs into fundamentals and updates references accordingly.
• Adds interactive callback flow charts (via vis-network) and consolidates the manual gesture guide into the Manual gesture docs page.

Reviewed changes

Copilot reviewed 35 out of 37 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
packages/react-native-gesture-handler/apple/RNGestureHandlerDetector.mm	Whitespace cleanup.
packages/docs-gesture-handler/yarn.lock	Adds lock entry for new docs dependency.
packages/docs-gesture-handler/src/theme/MDXComponents/Details.js	Adjusts summary detection logic for MDX <summary>.
packages/docs-gesture-handler/src/examples/CallbacksFlowCharts/index.ts	Exposes new callback flow chart components.
packages/docs-gesture-handler/src/examples/CallbacksFlowCharts/TouchEventChart.jsx	Adds touch callback flow chart node/edge data.
packages/docs-gesture-handler/src/examples/CallbacksFlowCharts/GestureEventChart.jsx	Adds gesture callback flow chart node/edge data.
packages/docs-gesture-handler/src/examples/CallbacksFlowCharts/FlowChart.jsx	Renders charts using vis-network.
packages/docs-gesture-handler/package.json	Adds vis-network dependency for charts.
packages/docs-gesture-handler/docs/under-the-hood/state.md	Rewrites handler state documentation as a callback-focused table.
packages/docs-gesture-handler/docs/guides/troubleshooting.md	Removes troubleshooting section about automatic workletization (now covered elsewhere).
packages/docs-gesture-handler/docs/guides/manual-gestures/index.md	Removes the standalone manual gestures guide (content moved/merged).
packages/docs-gesture-handler/docs/guides/manual-gestures/_steps/step7.md	Removes old manual-gestures step content.
packages/docs-gesture-handler/docs/guides/manual-gestures/_steps/step6.md	Removes old manual-gestures step content.
packages/docs-gesture-handler/docs/guides/manual-gestures/_steps/step5.md	Removes old manual-gestures step content.
packages/docs-gesture-handler/docs/guides/manual-gestures/_steps/step4.md	Removes old manual-gestures step content.
packages/docs-gesture-handler/docs/guides/manual-gestures/_steps/step3.md	Removes old manual-gestures step content.
packages/docs-gesture-handler/docs/gestures/use-tap-gesture.mdx	Removes links to removed states/events page; simplifies wording.
packages/docs-gesture-handler/docs/gestures/use-rotation-gesture.mdx	Updates activation wording and removes states/events deep links.
packages/docs-gesture-handler/docs/gestures/use-pinch-gesture.mdx	Updates activation wording and removes states/events deep links.
packages/docs-gesture-handler/docs/gestures/use-pan-gesture.mdx	Removes states/events deep links and updates wording.
packages/docs-gesture-handler/docs/gestures/use-native-gesture.mdx	Simplifies state-based phrasing around activation/interruption.
packages/docs-gesture-handler/docs/gestures/use-manual-gesture.mdx	Merges manual gesture guide into Manual gesture docs and updates state-manager link.
packages/docs-gesture-handler/docs/gestures/use-long-press-gesture.mdx	Removes states/events deep links; simplifies wording.
packages/docs-gesture-handler/docs/gestures/use-fling-gesture.mdx	Removes states/events deep links; simplifies wording.
packages/docs-gesture-handler/docs/gestures/state-manager.md	Removes old Gesture state manager page (moved to fundamentals).
packages/docs-gesture-handler/docs/gestures/_shared/base-gesture-config.md	Rewords state-based config descriptions to callback/behavior language.
packages/docs-gesture-handler/docs/gestures/_shared/base-continuous-gesture-config.md	Updates state manager link to new fundamentals location.
packages/docs-gesture-handler/docs/gestures/_manual_gesture_steps/step7.md	Adds new manual gesture step snippet for activation/deactivation callbacks.
packages/docs-gesture-handler/docs/gestures/_manual_gesture_steps/step6.md	Adds new manual gesture step snippet for onTouchesUp handling.
packages/docs-gesture-handler/docs/gestures/_manual_gesture_steps/step5.md	Adds new manual gesture step snippet for onTouchesMove handling.
packages/docs-gesture-handler/docs/gestures/_manual_gesture_steps/step4.md	Adds new manual gesture step snippet for onTouchesDown handling.
packages/docs-gesture-handler/docs/gestures/_manual_gesture_steps/step3.md	Adds new manual gesture step snippet for wiring up pointers + detector.
packages/docs-gesture-handler/docs/gestures/_manual_gesture_steps/step2.md	Refactors the pointer component snippet to typed TS style.
packages/docs-gesture-handler/docs/gestures/_manual_gesture_steps/step1.md	Refactors pointer type snippet to TS type.
packages/docs-gesture-handler/docs/fundamentals/states-events.mdx	Removes old states & events fundamentals page.
packages/docs-gesture-handler/docs/fundamentals/state-manager.mdx	Adds new fundamentals page documenting GestureStateManager.
packages/docs-gesture-handler/docs/fundamentals/callbacks-events.mdx	Adds new fundamentals page describing callbacks/events + flow charts.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.