Document Quick-Pick Boluses and Meals for remote commands

[bjorkert]

Adds documentation for the Quick-Pick Boluses and Meals feature (LoopFollow code PR #603), which surfaces tap-to-fill shortcut buttons at the top of the remote Bolus and Meal/Carbs screens.

Changes

• New Quick-Pick Boluses and Meals section on both remote-control-trio.md and remote-control-loop.md, placed after the Remote Bolus sections.
• Explains the tap-to-fill behavior (nothing is sent until reviewed), how suggestions are scored (time of day, day of week, recency), and that history is stored locally on the device.
• Per-backend scope notes: Trio meals include carbs + optional fat/protein/bolus; Loop carbs entries are carbs-only.
• Two screenshots added to docs/remote/img/.

Note

The availability admonition currently reads "6.2 and newer" as a placeholder (<!-- TODO -->) — please confirm the actual release version before merging.

[marionbarker]

I originally looked at #33, then found this one.

The quick-pick images for the Loop pages need to be updated - right now they show the meal screen from Trio.

This can be fixed in the update/next_version branch before deployment.