remove dead code

src/app/About.vue

@@ -1,5 +0,0 @@
-<template>
-  <div class="about">
-    <h1>This is an about page</h1>
-  </div>
-</template>

src/player/TrackInfo.vue

@@ -1,28 +0,0 @@
-<template>
-  <div>
-    <div class="col" d-flex fill-height grow>
-      <h1>{{ track.name }}</h1>
-      <div>{{ track.artist }}</div>
-      <v-card color="blue" tile height="100%" width="100%" />
-    </div>
-  </div>
-</template>
-<style scoped lang="scss">
-.on-hover {
-  opacity: 0.6;
- }
-
-.show-btns {
-  color: rgba(255, 255, 255, 1) !important;
-}
-
-</style>
-<script lang="ts">
-  import Vue from 'vue'
-
-  export default Vue.extend({
-    props: {
-      album: { type: Object, required: true }
-    }
-  })
-</script>