Fix Clients.openWindow binding and add Install/Activate event types

Clients.openWindow was compiling to .open() instead of .openWindow().
Added Install and Activate variants to eventType for service worker
lifecycle events.

Author: nojaf

src/EventAPI.res

@@ -3,6 +3,7 @@
 @unboxed
 type eventType =
   | @as("abort") Abort
+  | @as("activate") Activate
   | @as("auxclick") Auxclick
   | @as("beforeinput") Beforeinput
   | @as("beforetoggle") Beforetoggle
@@ -35,6 +36,7 @@ type eventType =
   | @as("focus") Focus
   | @as("formdata") Formdata
   | @as("input") Input
+  | @as("install") Install
   | @as("invalid") Invalid
   | @as("keydown") Keydown
   | @as("keypress") Keypress

src/ServiceWorkerAPI/Clients.res

@@ -24,7 +24,7 @@ Opens a new browser window for a given URL and returns a `Promise` for the new `
 [Read more on MDN](https://developer.mozilla.org/docs/Web/API/Clients/openWindow)
 */
 @send
-external openWindow: (clients, string) => promise<windowClient> = "open"
+external openWindow: (clients, string) => promise<windowClient> = "openWindow"
 
 /**
 Allows an active service worker to set itself as the controller for all clients within its scope.