Support Sticky Headers/Footers within Sections

[bae080311]

Summary

Provide utility or guidance for creating sticky headers or footers that remain visible within a specific section's scroll area, improving complex layout support and user experience.

Proposed Solution

Explore seamless integration with CSS position: sticky or offer specific helper components/directives within the framework packages (/react, /vue, /svelte) to manage sticky elements relative to their parent section.

Acceptance Criteria

• Sticky elements correctly behave within their defined section boundaries.
• Examples provided for implementing sticky elements per framework.
• No visual glitches or conflicts with jump-section core functionality.

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