JS: Fix merge of 3963 and 3961 (#3980)

* toString() was moved, not duplicated
* These had gotten lost
* This is now implemented
* Add missing version doctags

applications/system/js_app/packages/fz-sdk/gui/index.d.ts

@@ -30,7 +30,7 @@
  * |----------------------|------------------|
  * | `button_menu`        | ❌               |
  * | `button_panel`       | ❌               |
- * | `byte_input`         | ❌               |
+ * | `byte_input`         | ✅               |
  * | `dialog_ex`          | ✅ (as `dialog`) |
  * | `empty_screen`       | ✅               |
  * | `file_browser`       | ❌               |
@@ -122,11 +122,26 @@ import type { Contract } from "../event_loop";
 type Properties = { [K: string]: any };
 
 export declare class View<Props extends Properties> {
+    /**
+     * Assign value to property by name
+     * @param property Name of the property
+     * @param value Value to assign
+     * @version Added in JS SDK 0.1
+     */
     set<P extends keyof Props>(property: P, value: Props[P]): void;
 }
 
 export declare class ViewFactory<Props extends Properties, V extends View<Props>> {
+    /**
+     * Create view instance with default values, can be changed later with set()
+     * @version Added in JS SDK 0.1
+     */
     make(): V;
+    /**
+     * Create view instance with custom values, can be changed later with set()
+     * @param initial Dictionary of property names to values
+     * @version Added in JS SDK 0.1
+     */
     makeWith(initial: Partial<Props>): V;
 }
 
@@ -144,6 +159,11 @@ declare class ViewDispatcher {
      * @version Added in JS SDK 0.1
      */
     navigation: Contract;
+    /**
+     * View object currently shown
+     * @version Added in JS SDK 0.1
+     */
+    currentView: View<any>;
     /**
      * Sends a number to the custom event handler
      * @param event number to send