feat(string coder) implementation

app/globals.css

@@ -2,6 +2,10 @@
 @tailwind components;
 @tailwind utilities;
 
+.text-weak {
+    @apply text-zinc-500 dark:text-zinc-400;
+}
+
 html.light {
     --background: #ffffff;
     --foreground: #171717;