fix: 优化todo页面样式

src/views/todo/todo.vue

@@ -1,5 +1,5 @@
 <template>
-  <div class="flex flex-col justify-center page-container">
+  <div class="page-container">
     <div class="text-center">
       <img src="~@/assets/images/exception/403.svg" alt="" />
     </div>
@@ -23,6 +23,7 @@
     width: 100%;
     border-radius: 4px;
     padding-top: 100px;
+    text-align: center;
 
     .text-center {
       h1 {