web/state/settings: add "disable analytics" option

web/src/lib/state/settings.ts

@@ -9,6 +9,14 @@ import defaultSettings from '../settings/defaults';
 type PartialSettings = RecursivePartial<CobaltSettings>;
 type PartialSettingsWithSchema = RecursivePartial<CobaltSettings> & { schemaVersion: number };
 
+const updatePlausiblePreference = (settings: PartialSettings) => {
+    if (settings.privacy?.disableAnalytics) {
+        localStorage.setItem('plausible_ignore', 'true');
+    } else if (localStorage.getItem('plausible_ignore') !== null) {
+        localStorage.removeItem('plausible_ignore');
+    }
+}
+
 const writeToStorage = (settings: PartialSettings) => {
     localStorage.setItem(
         "settings",
@@ -69,6 +77,7 @@ export function updateSetting(partial: PartialSettings) {
             )
         );
 
+        updatePlausiblePreference(partial);
         return updated;
     });
 }