Fix #1157: player crash when using Funkwhale as a PWA

changes/changelog.d/1137.docs

-Updated documentation to reflect changes in Caddy v2.

changes/changelog.d/1157.bugfix

+Fixed player crash when using Funkwhale as a PWA (#1157)

front/src/components/audio/Player.vue

@@ -721,7 +721,7 @@ export default {
         // If the session is playing as a PWA, populate the notification
         // with details from the track
         if ('mediaSession' in navigator) {
-          let metatata = {
+          let metadata = {
             title: this.currentTrack.title,
             artist: this.currentTrack.artist.name,
           }