Add snippets for focus management in Compose

[chikoski]

This pull request add some snippets about focus management

[snippet-bot]

Here is the summary of changes.

You are about to add 14 region tags.

• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTarget.kt:69, tag android_compose_touchinput_focus_target
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTarget.kt:92, tag android_compose_touchinput_focus_target_interactive_ui_element
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTarget.kt:122, tag android_compose_touchinput_focus_target_interactive_ui_element
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTarget.kt:141, tag android_compose_touchinput_focus_modifier_precedence
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTraversal.kt:105, tag android_compose_touchinput_focus_one_dimensional_traversal
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTraversal.kt:152, tag android_compose_touchinput_focus_one_dimensional_traversal_in_z_shape
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTraversal.kt:190, tag android_compose_touchinput_focus_one_dimensional_traversal_override
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTraversal.kt:244, tag android_compose_touchinput_focus_two_dimensional_traversal
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTraversal.kt:283, tag android_compose_touchinput_focus_two_dimensional_traversal_override
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTraversal.kt:317, tag android_compose_touchinput_focus_two_dimensional_traversal_with_focus_group
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTraversal.kt:367, tag android_compose_touchinput_focus_on_enter_callback
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusedState.kt:59, tag android_compose_touchinput_focus_ripple
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/MoveFocus.kt:60, tag android_compose_touchinput_clear_focus_esc
• compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/RequestFocus.kt:61, tag android_compose_touchinput_focus_redirection

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[Copilot]

Pull Request Overview

This PR introduces a set of Compose snippets demonstrating focus management use-cases and wires them into the existing snippets navigation.

• Adds new focus snippets covering request focus, focus movement, focus state, focus traversal, and focus targets.
• Extends the navigation graph (Destination.kt and SnippetsActivity.kt) to include a new FocusExamples screen and its sub-routes.
• Refactors visibility and imports in FocusSnippets.kt to expose snippet functions and update snippet identifiers.

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
touchinput/focus/RequestFocus.kt	New snippet for requesting focus and redirection
touchinput/focus/MoveFocus.kt	New snippet for advancing and clearing focus with ESC
touchinput/focus/FocusedState.kt	New snippet for applying ripples based on focus state
touchinput/focus/FocusTraversal.kt	New 1D/2D focus traversal examples and overrides
touchinput/focus/FocusTarget.kt	New snippet showing which UI elements are focus targets
touchinput/focus/FocusSnippets.kt	Hosts all focus snippet UIs, updated visibilities and imports
navigation/Destination.kt	Added FocusExamples enum and entries
SnippetsActivity.kt	Registered the new FocusExamples routes

Comments suppressed due to low confidence (1)

compose/snippets/src/main/java/com/example/compose/snippets/touchinput/focus/FocusTarget.kt:122

• This snippet ID is duplicated in InteractiveUiElementIsFocusTargets; consider giving each snippet a unique tag to avoid collisions in generated docs.

        // [START android_compose_touchinput_focus_target_interactive_ui_element]