Improve fullscreen support for CloudflareStreamPlayer and VideoPlayer components

- Add missing `webkitallowfullscreen` attribute in CloudflareStreamPlayer
- Enhance VideoPlayer to detect iOS devices and use `webkitEnterFullscreen` when available
- Adjust fullscreen state setting to account for WebKit-specific fullscreen elements

packages/web/src/components/CloudflareStreamPlayer.tsx

@@ -42,6 +42,9 @@ export function CloudflareStreamPlayer({
       if (!iframe.hasAttribute("allowfullscreen")) {
         iframe.setAttribute("allowfullscreen", "")
       }
+      if (!iframe.hasAttribute("webkitallowfullscreen")) {
+        iframe.setAttribute("webkitallowfullscreen", "")
+      }
       return true
     }