Start work on dark-mode, fix heading scroll position

src/components/ToggleColorMode.vue

@@ -0,0 +1,23 @@
+<template>
+	<div class="position-fixed corner">
+		<template v-if="store.colorMode === 'dark'">
+			<IFaSolidSun @click="store.toggleColorMode" />
+		</template>
+		<template v-else>
+			<IFaMoonO @click="store.toggleColorMode" />
+		</template>
+	</div>
+</template>
+
+<style scoped>
+.corner {
+	right: 10px;
+	bottom: 10px;
+}
+</style>
+
+<script setup lang="ts">
+import { useStateStore } from "@/stores/stateStore";
+
+const store = useStateStore();
+</script>