Update:Abs icon font and navbar to use icons

pages/bookshelf/authors.vue

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+<template>
+  <div>Authors</div>
+</template>
+
+<script>
+export default {
+  data() {
+    return {}
+  },
+  watch: {},
+  computed: {},
+  methods: {}
+}
+</script>

pages/bookshelf/latest.vue

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+<template>
+  <div>Latest</div>
+</template>
+
+<script>
+export default {
+  data() {
+    return {}
+  },
+  watch: {},
+  computed: {},
+  methods: {}
+}
+</script>

pages/bookshelf/playlists.vue

@@ -0,0 +1,14 @@
+<template>
+  <div>Playlists</div>
+</template>
+
+<script>
+export default {
+  data() {
+    return {}
+  },
+  watch: {},
+  computed: {},
+  methods: {}
+}
+</script>