add hide on start option (#1919)

* add hide on start option (#1918)

* text update

* clean up

* removed `hideOnStart` from ConfigV1 & ConfigV2

* tests update

src/common/config/index.ts

@@ -236,6 +236,9 @@ export class Config extends EventEmitter {
     get autostart() {
         return this.combinedData?.autostart ?? defaultPreferences.autostart;
     }
+    get hideOnStart() {
+        return this.combinedData?.hideOnStart ?? defaultPreferences.hideOnStart;
+    }
     get notifications() {
         return this.combinedData?.notifications ?? defaultPreferences.notifications;
     }