add a HeaderContentBottom layout

- rewrite album page to use the above layout

src/views/album/Content.vue

@@ -0,0 +1,14 @@
+<template>
+  <div class="songs rounded">
+    <SongList :tracks="tracks" :on_album_page="true" />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { Track } from "@/interfaces";
+import SongList from "@/components/FolderView/SongList.vue";
+
+defineProps<{
+  tracks: Track[];
+}>();
+</script>