feat(ui): drop the one-word status-bar badge

The small 1️⃣ in the status bar's score-preview slot read as noise; the
single-word rule keeps its spelled-out label in the history header and
the lobby invitation card.

docs/UI_DESIGN.md

@@ -214,8 +214,7 @@ e2e and the screenshots.
   **Drop game** (or 📤 **Export GCG** on a finished game) at the left and the comms 💬
   (badged with unread chat) at the right, icon-only. A **single-word-rule** game (a Russian
   game with "multiple words per turn" off) centres a **"One word per turn"** label between
-  those two icons, and the status bar shows a small **1️⃣** in the score-preview slot that
-  yields to the live word/score preview while tiles are pending; standard games show neither. Each **opponent**'s card also gains two
+  those two icons; standard games show no label. Each **opponent**'s card also gains two
   edge-pinned controls (non-guests): a 🤝 **add-friend** on the right (hidden once a friend,
   disabled once requested) and a ✖️ **block** on the left. Each confirms via the fading-✅ tap,
   swapping the card's score for "Add friend?" — or **"Block?" in the danger colour** — while