Move competition back button onto the page with a real icon

The back button moves out of the topbar to the top-left of the page
above the competition name, and now renders an inline SVG arrow
(iconArrowLeft) instead of the "←" character.

web/competition.js

@@ -1313,14 +1313,35 @@
 
   // ---- Main render -------------------------------------------------------
 
+  function iconArrowLeft() {
+    const s = el("span", { class: "icon" });
+    s.innerHTML = '<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M19 12H5M12 19l-7-7 7-7"/></svg>';
+    return s;
+  }
+
+  function wsIndicator() {
+    state.wsDot = el("span", { class: "connection-status " + (state.wsOnline ? "online" : "offline") });
+    state.wsText = el("span", { class: "muted" }, state.wsOnline ? t("online") : t("offline"));
+    return el("span", { class: "ws-indicator" }, state.wsDot, state.wsText);
+  }
+
+  function updateWsIndicator() {
+    if (state.wsDot) {
+      state.wsDot.classList.toggle("online", state.wsOnline);
+      state.wsDot.classList.toggle("offline", !state.wsOnline);
+    }
+    if (state.wsText) state.wsText.textContent = state.wsOnline ? t("online") : t("offline");
+  }
+
   function render() {
     clearNode(root);
-    const backBtn = el("button", { class: "ghost",
+    const backBtn = el("button", { class: "ghost btn-back",
       onclick: () => { if (state.ws) { state.ws.close(); state.ws = null; } navigate("competitions"); } },
-      "← " + t("back"));
-    root.appendChild(renderTopbar(user, { extra: backBtn }));
+      iconArrowLeft(), t("back"));
+    root.appendChild(renderTopbar(user, { extra: wsIndicator() }));
 
     const container = el("div", { class: "container" });
+    container.appendChild(backBtn);
     container.appendChild(el("div", { class: "row", style: { justifyContent: "space-between", marginBottom: "0.5rem" } },
       el("h2", { style: { margin: 0 } },
         state.competition.name,
@@ -1329,10 +1350,6 @@
         isClosed() ? " " : null,
         isClosed() ? el("span", { class: "badge warn" }, t("closed")) : null,
       ),
-      el("div", { class: "row" },
-        el("span", { class: "connection-status " + (state.wsOnline ? "online" : "offline") }),
-        el("span", { class: "muted" }, state.wsOnline ? t("online") : t("offline")),
-      ),
     ));
 
     const tabs = el("div", { class: "tabs" });
@@ -1393,8 +1410,8 @@
 
   await loadAll();
   state.ws = openCompetitionWS(competitionId, {
-    onopen: () => { state.wsOnline = true; const e = document.querySelector(".connection-status"); if (e) { e.classList.add("online"); e.classList.remove("offline"); } },
-    onclose: () => { state.wsOnline = false; const e = document.querySelector(".connection-status"); if (e) { e.classList.remove("online"); e.classList.add("offline"); } },
+    onopen: () => { state.wsOnline = true; updateWsIndicator(); },
+    onclose: () => { state.wsOnline = false; updateWsIndicator(); },
     onmessage: handleWSMessage,
   });
   render();

web/style.css

@@ -387,11 +387,32 @@ tbody tr.transferred { background: #f3f6fb; }
   height: 8px;
   border-radius: 50%;
   background: #d1d5db;
-  margin-right: 0.5rem;
+  flex: none;
 }
 .connection-status.online { background: #10b981; }
 .connection-status.offline { background: #ef4444; }
 
+.ws-indicator {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.4rem;
+  font-size: 0.85rem;
+  line-height: 1;
+}
+/* Optically drop the dot ~1px: an all-caps label (Online/Offline) has
+   unused descender space, so its glyphs sit above the flex centre line. */
+.ws-indicator .connection-status { position: relative; top: 1px; }
+
+.btn-back {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.35rem;
+  margin-bottom: 0.75rem;
+  padding-left: 0.3rem;
+}
+.icon { display: inline-flex; }
+.icon svg { display: block; }
+
 textarea { resize: vertical; min-height: 60px; }
 
 @media (max-width: 700px) {