fix(site): update use-media reference for mediahost architecture (#1702)

Co-authored-by: Darius Cepulis <dcepulis@mux.com>

site/src/components/docs/demos/use-media/react/css/BasicUsage.css

@@ -0,0 +1,36 @@
+.media-container {
+  position: relative;
+}
+
+.media-container video {
+  width: 100%;
+}
+
+.info-panel {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+  padding: 12px;
+  margin: 0;
+  font-size: 0.8125rem;
+  background: rgba(0, 0, 0, 0.05);
+  border-top: 1px solid rgba(0, 0, 0, 0.1);
+}
+
+.info-panel div {
+  display: flex;
+  gap: 8px;
+}
+
+.info-panel dt {
+  min-width: 80px;
+  color: #6b7280;
+}
+
+.info-panel dd {
+  margin: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  font-variant-numeric: tabular-nums;
+  white-space: nowrap;
+}

site/src/components/docs/demos/use-media/react/css/BasicUsage.tsx

@@ -0,0 +1,52 @@
+import { createPlayer, isMediaSourceCapable, isMediaVideoDimensionsCapable } from '@videojs/react';
+import { Video, videoFeatures } from '@videojs/react/video';
+
+const Player = createPlayer({
+  features: videoFeatures,
+});
+
+function MediaInfo() {
+  const media = Player.useMedia();
+
+  if (!media) return null;
+
+  return (
+    <dl className="info-panel">
+      {isMediaSourceCapable(media) && (
+        <div>
+          <dt>src</dt>
+          <dd>{media.currentSrc || '—'}</dd>
+        </div>
+      )}
+      {isMediaVideoDimensionsCapable(media) && (
+        <>
+          <div>
+            <dt>videoWidth</dt>
+            <dd>{media.videoWidth}px</dd>
+          </div>
+          <div>
+            <dt>videoHeight</dt>
+            <dd>{media.videoHeight}px</dd>
+          </div>
+        </>
+      )}
+    </dl>
+  );
+}
+
+export default function BasicUsage() {
+  return (
+    <Player.Provider>
+      <Player.Container className="media-container">
+        <Video
+          src="https://stream.mux.com/BV3YZtogl89mg9VcNBhhnHm02Y34zI1nlMuMQfAbl3dM/highest.mp4"
+          autoPlay
+          muted
+          playsInline
+          loop
+        />
+        <MediaInfo />
+      </Player.Container>
+    </Player.Provider>
+  );
+}