Use `Quarters` layout and `Within 3 years` date range for scoped roadmap

What does this MR do and why?

When user opens Roadmap from a link within Child items widget of Epic Work Items, we need to load all the epics within 3 years of timeframe and use Quarters as default layout;

Link	Roadmap layout

MR acceptance checklist

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How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

1. Ensure you have Epic Work Items enabled, refer to https://docs.gitlab.com/ee/user/group/epics/epic_work_items.html
2. Create an epic work item for a group and add a bunch of child epics with start/due dates across 3 years of timeframe
3. Click on kebab menu from Child items header (as shown in screenshot above) and click View on a roadmap option.
4. Roadmap that opens should be set to Within 3 years date range and Quarters layout

Related to #478612 (closed)