Timeline

## Summary
Navigational component for moving between events on a timeline.

## 💰 User value
Describe why this is important and how it will help users (either developers, designers or the end-users). Think about how it makes people's lives easier, more accessible or quicker to build stuff.

## 📚 User Stories
If relevant, describe the high-level functionality as user stories.

*As an* ICDS user:
*I need*
*So that*

## 📝 Acceptance Criteria
If relevant, describe in full detail the different interactions and edge cases that the component or patterns needs to fulfil.

*Given*
*When*
*Then*

## ✏ Designs
If there's a Figma design file (or other mock-up), include it here.

## 🧾 Guidance
If there's written guidance or documentation, include it here.

The issue only identifies a navigational timeline component; it names no file, test, entry point, design, or guidance. Start by clarifying the user value, stories, interactions, edge cases, and design in the empty sections, then use the agreed acceptance criteria to identify the implementation and tests; done is a reviewed component that meets them.

Written by the indexing model from the issue text.