fix(lobby): sync BP dependency to bumped RP version; name portal_field

Two issues an addon-wide audit turned up.

The portal-texture commit bumped lobby_transfer_RP to 1.0.1 but left the
behavior pack's dependency on it pinned at 1.0.0. A dependency whose version
does not match the referenced pack's header is exactly the kind of mismatch
that makes Bedrock drop a pack, so this was a regression waiting to bite.

portal_field carries a menu_category, so it appears in the creative inventory,
but had no lang entry -- it showed as the raw key tile.silverlabs:portal_field
.name. The other four portal blocks were already named.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015Gf1kZypRDfPL1YiWUS1LC

lobby-addon/lobby_transfer_RP/texts/en_US.lang

@@ -2,3 +2,4 @@ tile.silverlabs:portal_frame.name=Portal Frame
 tile.silverlabs:portal_jamie.name=Jamie's World Portal
 tile.silverlabs:portal_lyla.name=Lyla's World Portal
 tile.silverlabs:portal_mya.name=Mya's World Portal
+tile.silverlabs:portal_field.name=Portal Field