Add disable zoom on mac (#3289)

* Add disable zoom on mac

* Add changelog line

* Add zommable in main.m

I see this file is ignore, but i think it's better to keep it up-to-date so if we ever unignore it will work correctly.

website/versioned_docs/version-v2.8.0/reference/options.mdx

@@ -109,6 +109,7 @@ func main() {
 			Appearance:           mac.NSAppearanceNameDarkAqua,
             WebviewIsTransparent: true,
             WindowIsTranslucent:  false,
+            DisableZoom:          false,
             About: &mac.AboutInfo{
                 Title:   "My Application",
                 Message: "© 2021 Me",
@@ -897,6 +898,13 @@ Mac: &mac.Options{
 }
 ```
 
+#### DisableZoom
+
+By default, the window is zoomable. Setting this to `true` will disable the zoom button (green button).
+
+Name: DisableZoom<br/>
+Type: `bool`
+
 #### About
 
 This configuration lets you set the title, message and icon for the "About" menu item in the app menu created by the "AppMenu" role.