Add Navigation 3 deep link snippets

[bsagmoe]

This PR adds code snippets for Navigation 3 deep links documentation.

[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/navigation3/deeplinks/DeepLinkSnippets.kt:92, tag android_compose_navigation3_deeplinks_request
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:114, tag android_compose_navigation3_deeplinks_extras_dsl
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:123, tag android_compose_navigation3_deeplinks_custom_extras
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:132, tag android_compose_navigation3_deeplinks_filter
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:143, tag android_compose_navigation3_deeplinks_static_matcher
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:151, tag android_compose_navigation3_deeplinks_uri_matcher
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:164, tag android_compose_navigation3_deeplinks_uri_matcher_query
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:176, tag android_compose_navigation3_deeplinks_uri_matcher_validation
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:186, tag android_compose_navigation3_deeplinks_custom_matcher
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:201, tag android_compose_navigation3_deeplinks_custom_matcher_result
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:229, tag android_compose_navigation3_deeplinks_backstack
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:249, tag android_compose_navigation3_deeplinks_match_request
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:277, tag android_compose_navigation3_deeplinks_modularization_feature
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/deeplinks/DeepLinkSnippets.kt:292, tag android_compose_navigation3_deeplinks_modularization_app

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