feat: moved back button to top left of Artist and Tracklist

src/components/globals/BackButton.vue

@@ -0,0 +1,34 @@
+<template>
+	<button class="top-back-button" @click="$router.back()">
+		<i class="material-icons mirrored md-36">forward</i>
+	</button>
+</template>
+
+<style lang="scss" scoped>
+$button-dimension: 4rem;
+$button-separator: 10px;
+
+.top-back-button {
+	display: flex;
+	justify-content: center;
+	align-items: center;
+
+	position: absolute;
+	top: $button-separator;
+	left: $button-separator;
+
+	min-width: unset;
+	width: $button-dimension;
+	height: $button-dimension;
+
+	background: var(--secondary-background);
+	border-radius: 50%;
+	padding: 0.25rem;
+	margin: 0;
+	transition: background 200ms ease-in-out;
+
+	&:hover {
+		background: var(--accent-color);
+	}
+}
+</style>