Expose the public search feature flag in the developer settings and disable it by default.

ElementX/Sources/Application/AppSettings.swift

@@ -268,7 +268,7 @@ final class AppSettings {
     
     // MARK: - Feature Flags
     
-    @UserPreference(key: UserDefaultsKeys.publicSearchEnabled, defaultValue: isDevelopmentBuild, storageType: .volatile)
+    @UserPreference(key: UserDefaultsKeys.publicSearchEnabled, defaultValue: false, storageType: .userDefaults(store))
     var publicSearchEnabled
     
     @UserPreference(key: UserDefaultsKeys.fuzzyRoomListSearchEnabled, defaultValue: false, storageType: .userDefaults(store))

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/DeveloperOptionsScreenModels.swift

@@ -43,6 +43,7 @@ enum DeveloperOptionsScreenViewAction {
 protocol DeveloperOptionsProtocol: AnyObject {
     var logLevel: TracingConfiguration.LogLevel { get set }
     var slidingSyncDiscovery: AppSettings.SlidingSyncDiscovery { get set }
+    var publicSearchEnabled: Bool { get set }
     var hideUnreadMessagesBadge: Bool { get set }
     var fuzzyRoomListSearchEnabled: Bool { get set }
     var hideTimelineMedia: Bool { get set }

ElementX/Sources/Screens/Settings/DeveloperOptionsScreen/View/DeveloperOptionsScreen.swift

@@ -36,6 +36,10 @@ struct DeveloperOptionsScreen: View {
             }
             
             Section("Room List") {
+                Toggle(isOn: $context.publicSearchEnabled) {
+                    Text("Public search")
+                }
+                
                 Toggle(isOn: $context.hideUnreadMessagesBadge) {
                     Text("Hide grey dots")
                 }