Overload observer function instead of default, update api-reports

Author: chrisshafer

api-reports/2_12.txt

@@ -15963,7 +15963,8 @@ RequestType[SO] val style: RequestType
 RequestType[SO] val track: RequestType
 RequestType[SO] val video: RequestType
 ResizeObserver[JC] def disconnect(): Unit
-ResizeObserver[JC] def observe(target: Element, options: js.UndefOr[ResizeObserverOptions]?): Unit
+ResizeObserver[JC] def observe(target: Element): Unit
+ResizeObserver[JC] def observe(target: Element, options: ResizeObserverOptions): Unit
 ResizeObserver[JC] def unobserve(target: Element): Unit
 ResizeObserverBoxOption[JT]
 ResizeObserverBoxOption[SO] val `border-box`: ResizeObserverBoxOption

api-reports/2_13.txt

@@ -15963,7 +15963,8 @@ RequestType[SO] val style: RequestType
 RequestType[SO] val track: RequestType
 RequestType[SO] val video: RequestType
 ResizeObserver[JC] def disconnect(): Unit
-ResizeObserver[JC] def observe(target: Element, options: js.UndefOr[ResizeObserverOptions]?): Unit
+ResizeObserver[JC] def observe(target: Element): Unit
+ResizeObserver[JC] def observe(target: Element, options: ResizeObserverOptions): Unit
 ResizeObserver[JC] def unobserve(target: Element): Unit
 ResizeObserverBoxOption[JT]
 ResizeObserverBoxOption[SO] val `border-box`: ResizeObserverBoxOption

dom/src/main/scala/org/scalajs/dom/ResizeObserver.scala

@@ -14,7 +14,8 @@ import scala.scalajs.js.annotation.JSGlobal
 class ResizeObserver(callback: js.Function2[js.Array[ResizeObserverEntry], ResizeObserver, _]) extends js.Object {
 
   /** Starts observing the specified Element or SVGElement. */
-  def observe(target: Element, options: js.UndefOr[ResizeObserverOptions] = js.native): Unit = js.native
+  def observe(target: Element): Unit = js.native
+  def observe(target: Element, options: ResizeObserverOptions): Unit = js.native
 
   /** Unobserves all observed Element or SVGElement targets. */
   def disconnect(): Unit = js.native