dashboard: User manual

[aaronchongth]

Feature request

Description

Create a set of slides/PDF as a generic user manual, adding the link to the README.md.

[aaronchongth]

This should be done after these tickets,

• dashboard: Overview tab to replace Building tab as default #502
• dashboard: Interactive map in Robot tab #504
• dashboard: Infrastructure tab #505
• dashboard: Clicking a component in panels moves interactive map to center on its icon #503

[aaronchongth]

Per VC, this can be done starting from the current revision of the dashboard, since the implementations are ongoing, and it should be updated along with new features.

[vallq]

WIP: https://docs.google.com/presentation/d/1Daf6cyCW_6Lhs4o7W5-sSt0H-uAzAB-_0tMN5t-8kVk/edit?usp=sharing