Document off-road location routes

[AvdLee]

Summary

• Document RocketSim 16.0.2 map waypoint picking for Location App Actions.
• Explain the Follow roads toggle for Apple Maps routes versus direct off-road paths.
• Add the golf course route screenshot to the Location Simulation docs.

Test plan

• cd docs && npm run lint
• cd docs && npm run format:check
• cd docs && npm run typecheck
• cd docs && npm run build
• cd docs && npm run knip