add support for audio, video, and source elements

Author: gnoff

packages/react-dom/src/client/ReactDOMHostConfig.js

@@ -440,9 +440,28 @@ export function commitMount(
           | HTMLTextAreaElement).focus();
       }
       return;
-    case 'img': {
+    case 'img':
+    case 'source': {
       if ((newProps: any).src) {
-        ((domElement: any): HTMLImageElement).src = ((domElement: any): HTMLImageElement).src;
+        ((domElement: any):
+          | HTMLImageElement
+          | HTMLSourceElement).src = ((domElement: any):
+          | HTMLImageElement
+          | HTMLSourceElement).src;
+      }
+      if ((newProps: any).srcset) {
+        ((domElement: any):
+          | HTMLImageElement
+          | HTMLSourceElement).srcset = ((domElement: any):
+          | HTMLImageElement
+          | HTMLSourceElement).srcset;
+      }
+      return;
+    }
+    case 'video':
+    case 'audio': {
+      if (((domElement: any): HTMLMediaElement).currentSrc) {
+        ((domElement: any): HTMLMediaElement).load();
       }
       return;
     }