feat: add vue-i18n

src/main.postcss

@@ -23,4 +23,12 @@ html, body, #app {
 
 .btn[disabled] {
   @apply cursor-default bg-gray-600 opacity-50;
+}
+
+.icon-btn {
+  @apply opacity-75 transition duration-200 ease-in-out cursor-pointer inline-block select-none;
+}
+
+.icon-btn:hover {
+  @apply opacity-100;
 }