design: change theme to retro

src/styles/app.css

@@ -25,7 +25,7 @@
 @plugin 'daisyui' {
   themes:
     retro --default,
-    business --prefersdark;
+    aqua --prefersdark;
 }
 
 @config '../../tailwind.config.js';

src/theme.config.ts

@@ -2,6 +2,6 @@
 // Update these values to change the light and dark themes
 
 export const themeConfig = {
-  light: "cupcake",
-  dark: "business",
+  light: 'retro',
+  dark: 'aqua',
 }