Adds MyEmojiListScreen under emojipacks/membershipManagement/, reachable
from the "My Emoji List" header row in ListOfEmojiPacksScreen (which
previously had a no-op click handler).
The screen enumerates every pack address referenced by the user's kind
10030 selection event and renders each with title, author name, pack
thumbnail, and a preview of its emojis. A trailing delete icon calls
account.removeEmojiPack(note) which republishes the 10030 without that
pack's `a` tag; downstream consumers (reaction menu, `:` autocomplete in
composers) refresh automatically since they share the same flow.
Tapping a row routes to Route.EmojiPackView(dTag) when the pack is
self-authored, and to Route.Note(addressTag) otherwise. EmojiPackView is
backed by OwnedEmojiPacksState, which filters to the logged-in user's
authored packs, so selected packs authored by other users must use the
generic thread viewer (which already renders kind 30030 via
RenderEmojiPack).
Reordering is intentionally deferred: it would require a new
EmojiPackSelectionEvent.reorder(...) builder in Quartz (none exists
today) and a drag affordance that doesn't conflict with tap-to-view /
tap-to-delete. The header's `openMyEmojiList` callback remains the only
nav entry point, so adding reorder later is a pure follow-up.
Claude
8b2eac72c3