restructuring (#56)

* restructuring

* pin svelte kit version & parallel execution

* update svelte kit

* correct test result assets

* add timeout

* correct locale path

* simplify crypto

* fix for #58

* add verbosity flag

* disable flaky test

packages/frontend/src/lib/ui/ThemeToggle.svelte

@@ -0,0 +1,62 @@
+<script lang="ts" context="module">
+	import { writable } from 'svelte/store'
+
+	enum Theme {
+		Dark = 'dark',
+		Light = 'light',
+		Auto = 'auto',
+	}
+
+	const NextTheme = {
+		[Theme.Auto]: Theme.Light,
+		[Theme.Light]: Theme.Dark,
+		[Theme.Dark]: Theme.Auto,
+	}
+
+	function init(): Theme {
+		if (typeof window !== 'undefined') {
+			const saved = window.localStorage.getItem('theme') as Theme
+			if (Object.values(Theme).includes(saved)) return saved
+		}
+		return Theme.Auto
+	}
+
+	export const theme = writable<Theme>(init())
+
+	theme.subscribe((theme) => {
+		if (typeof window !== 'undefined') {
+			window.localStorage.setItem('theme', theme)
+			const html = window.document.getElementsByTagName('html')[0]
+			html.setAttribute('theme', theme)
+		}
+	})
+</script>
+
+<script lang="ts">
+	import Icon from '$lib/ui/Icon.svelte'
+
+	function change() {
+		theme.update((current) => NextTheme[current])
+	}
+</script>
+
+<div on:click={change}>
+	<Icon class="icon" icon="contrast" />
+	{$theme}
+</div>
+
+<style>
+	div :global(.icon) {
+		height: 1rem;
+		width: 1rem;
+		margin-right: 0.5rem;
+	}
+
+	div {
+		display: flex;
+		flex-direction: row;
+		justify-content: flex-end;
+		align-items: center;
+		cursor: pointer;
+	}
+</style>