Replace the reaction-driven selection (number emojis + a wait_for
"reaction_add" loop) with a native nextcord.ui.View, matching the
pattern now used by recent/random.

The old flow added 1️⃣2️⃣3️⃣ reactions one-by-one with a 1s sleep between
each (so the menu was unusable for ~2-3s), polled wait_for in a manual
end_time loop, and posted a fresh detail message per pick (deleting the
previous). RecommendationView instead shows numbered buttons that drill
into each pick in place, with a Back button to return to the list.

Each transition defers the component interaction before fetching
watchers/poster (so a slow fetch can't blow the 3s ack window), clears
the prior poster with attachments=[], restricts the buttons to the
command author via interaction_check, and disables them on timeout.

Drops the now-unused show_detailed_info, number_emojis, and asyncio
import. Updates the recommendation_timeout config description.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>