add: snow theme

src/lib/utils/themes.ts

@@ -1,6 +1,6 @@
 import { themeStore } from '$lib/stores/theme.svelte';
 
-export type ThemePattern = 'waves' | 'geometric' | 'dots' | 'none';
+export type ThemePattern = 'snow' | 'none';
 
 export interface Theme {
 	name: string;
@@ -13,16 +13,8 @@ export const AVAILABLE_THEMES: Record<string, Theme> = {
 		pattern: 'none'
 	},
 	waves: {
-		name: 'Waves',
-		pattern: 'waves'
-	},
-	geometric: {
-		name: 'Geometric',
-		pattern: 'geometric'
-	},
-	dots: {
-		name: 'Dots',
-		pattern: 'dots'
+		name: 'Snow',
+		pattern: 'snow'
 	}
 };