Make Updater slightly more future proof

- Removes the option to disable update notifications. Users really should not be outdated, so this option was never good. To disable notifications, turn on auto update
- Enables auto update by default. Users keep complaining about issues while being outdated, so this should help
- Update Notification now opens Updater in a modal to remove dependency on Settings patch. This makes it slightly more failsafe, it's unlikely that both modals and our settings patch break

src/api/Settings.ts

@@ -29,7 +29,6 @@ import plugins from "~plugins";
 
 const logger = new Logger("Settings");
 export interface Settings {
-    notifyAboutUpdates: boolean;
     autoUpdate: boolean;
     autoUpdateNotification: boolean,
     useQuickCss: boolean;
@@ -78,8 +77,7 @@ export interface Settings {
 }
 
 const DefaultSettings: Settings = {
-    notifyAboutUpdates: true,
-    autoUpdate: false,
+    autoUpdate: true,
     autoUpdateNotification: true,
     useQuickCss: true,
     themeLinks: [],