add some apple music auth stuff

frontend/src/components/appleMusic.vue

@@ -0,0 +1,45 @@
+<template>
+    <div>
+        <h1>AppleMusic</h1>
+    </div>
+</template>
+
+<script>
+    export default {
+        data() {
+            return {
+                devTokenAvailable: false,
+                musicKit: null,
+            }
+        },
+        methods: {
+            prepare() {
+                document.addEventListener( 'musickitloaded', function() {
+                    fetch( 'http://localhost:8081/getAppleMusicDevToken' ).then( res => {
+                        if ( res.status === 200 ) {
+                            this.devTokenAvailable = true;
+                            res.text().then( token => {
+                                this.musicKit = MusicKit.configure({
+                                    developerToken: token,
+                                    app: {
+                                        name: 'MusicPlayer',
+                                        build: '2.1.0'
+                                    }
+                                } );
+                                setTimeout( () => {
+                                    this.musicKit.authorize();
+                                }, 100 );
+                            } );
+                        }
+                    } );
+                });
+            }
+        },
+        created() {
+            window.addEventListener( 'DOMContentLoaded', () => {
+                this.prepare();
+            } );
+        }
+    }
+
+</script>