Fix typo in Javadoc

Correct "prestation" to "presentation" in the description of `firstVideoSampleTimestampUs`.

PiperOrigin-RevId: 795452772

Author: rohitjoins

libraries/transformer/src/main/java/androidx/media3/transformer/Mp4Info.java

@@ -59,7 +59,7 @@
    */
   public final long lastSyncSampleTimestampUs;
 
-  /** The prestation timestamp of the first video frame, in microseconds. */
+  /** The presentation timestamp of the first video frame, in microseconds. */
   public final long firstVideoSampleTimestampUs;
 
   /**