docs: move button style to index.css

docs/components/home/Features.vue

@@ -54,9 +54,3 @@ onBeforeUnmount(stop)
     </div>
   </div>
 </template>
-
-<style>
-.button {
-  @apply z-1 shadow-lg transition-colors duration-200 text-white font-semibold text-lg mt-4 px-5 py-3 rounded-lg bg-green-500;
-}
-</style>

docs/src/.vuepress/assets/index.css

@@ -64,6 +64,10 @@ ul li {
   @apply mt-2;
 }
 
+.button {
+  @apply z-1 shadow-lg transition-colors duration-200 text-white font-semibold text-lg mt-4 px-5 py-3 rounded-lg bg-green-500;
+}
+
 .vue-flow__node.dark {
   @apply bg-gray-800 text-white;
 }