fix(settings): open the right Settings tab from the update link and Race Day

The sidebar update notice now lands on System & backup at Updates, and
Race Day's decoder/backend/audio fix buttons open the matching tab,
instead of whichever tab was used last.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/settings.js

@@ -3,6 +3,14 @@ import { mountAuthSettings } from "./auth_view.js";
 import { mountTtsSettings } from "./tts_settings_view.js";
 
 let activeSettingsTab = "connection";
+let pendingSettingsFocusId = "";
+
+// Lets other views open Settings on the right tab (and scroll to a section) - e.g. the
+// sidebar "update available" link lands on System & backup -> Updates.
+export function openSettingsTab(tabId, focusId = "") {
+  activeSettingsTab = tabId;
+  pendingSettingsFocusId = focusId;
+}
 
 function formatBackupSize(bytes) {
   const value = Math.max(0, Number(bytes || 0));
@@ -441,7 +449,7 @@ export function renderSettings(deps) {
       <div class="panel-body" id="authSettings"></div>
     </section>
 
-    <section class="panel mt-16">
+    <section class="panel mt-16" id="settingsUpdateSection">
       <div class="panel-header"><h3>${t("settings.update_title")}</h3></div>
       <div class="panel-body">
         <p>${t("settings.update_current_version")}: <strong>v${escapeHtml(String(updateStatus?.currentVersion || ""))}</strong></p>
@@ -579,6 +587,10 @@ Erik Eriksson;654321;4WD;Associated;;</code></pre>
     button.addEventListener("click", () => applySettingsTab(button.dataset.settingsTab));
   });
   applySettingsTab(settingsTabButtons.some((button) => button.dataset.settingsTab === activeSettingsTab) ? activeSettingsTab : "connection");
+  if (pendingSettingsFocusId) {
+    document.getElementById(pendingSettingsFocusId)?.scrollIntoView({ block: "start" });
+    pendingSettingsFocusId = "";
+  }
   mountAuthSettings(document.getElementById("authSettings"), { t, escapeHtml });
   mountTtsSettings(document.getElementById("ttsSettings"), { state, t, escapeHtml, saveState, speakText });