#1057 expose ZoomFactor get/set and add the respective windows only options (#1463)

* #1057 expose ZoomFactor get/set and add the respective windows only options

* Remove debug log, use IsZoomControlEnabled as well

* use math.float to/from 64bits functions instead

* Add new windows options ZoomFactor and IsZoomControlEnabled doc

* Grammar

* Update options.mdx

Co-authored-by: Lea Anthony <lea.anthony@gmail.com>

website/docs/reference/options.mdx

@@ -42,6 +42,8 @@ func main() {
         WindowStartState:   options.Maximised,
         CSSDragProperty:   "--wails-draggable",
         CSSDragValue:      "drag",
+        ZoomFactor:           1.0,
+        IsZoomControlEnabled: false,
         Bind: []interface{}{
             app,
         },
@@ -361,6 +363,21 @@ Indicates what value the `CSSDragProperty` style should have to drag the window.
 Name: CSSDragValue<br/>
 Type: `string`
 
+### ZoomFactor
+
+Name: ZoomFactor<br/>
+Type: `float64`
+
+This defines the zoom factor for the WebView2. This is the option matching the Edge user activated zoom in or out.
+
+### IsZoomControlEnabled
+
+Name: IsZoomControlEnabled<br/>
+Type: `bool`
+
+This enables the zoom factor to be changed by the user. Please note that the zoom factor can be set in the options while
+disallowing the user to change it at runtime (f.e. for a kiosk application or similar).
+
 ### Bind
 
 A slice of struct instances defining methods that need to be bound to the frontend.