Fix: Light theme not being set by default

src/lib/util/theme.ts

@@ -1,10 +1,15 @@
 import { writable } from 'svelte/store';
+import type { Writable } from 'svelte/store';
 import { persist, localStorage } from '@macfja/svelte-persistent-store';
 
-export const themeStore = persist(
+export interface ThemeConfig {
+	isDark: boolean;
+	theme?: string;
+}
+
+export const themeStore: Writable<ThemeConfig> = persist(
 	writable({
-		isDark: false,
-		theme: ''
+		isDark: false
 	}),
 	localStorage(),
 	'themeStore'

src/routes/__layout.svelte

@@ -24,8 +24,8 @@
 
 		const isDarkMode = window.matchMedia('(prefers-color-scheme: dark)').matches;
 
-		if (isDarkMode && $themeStore.theme === '') {
-			setTheme('dark');
+		if ($themeStore.theme === undefined) {
+			setTheme(isDarkMode ? 'dark' : 'light');
 		}
 
 		themeStore.subscribe(({ theme, isDark }) => {