Fix playing music on Chrome

src/music/MusicPlayer.tsx

@@ -67,6 +67,13 @@ class MusicPlayer extends React.Component<MusicPlayerProps, State> {
         }
 
         if (this.props.playing) {
+            // Chrome is super awkward about AudioContext, and won't
+            // even allow creating one without complaining about
+            // wanting user input, so we need to resume the context
+            // before we can actually play.
+            //
+            // Luckily, this has no adverse effects on Firefox.
+            context.resume().then(() => {
                 source
                     .play()
                     .then(() => {
@@ -75,6 +82,7 @@ class MusicPlayer extends React.Component<MusicPlayerProps, State> {
                     .catch((error) => {
                         console.error(`Could not play audio: ${error}`);
                     });
+            });
         } else {
             source.pause();
         }