style: 修改英文断行的问题

src/components/Chat/ChatText.vue

@@ -66,6 +66,8 @@ const text = computed(() => {
 }
 
 .markdown-body {
+  word-break: break-word;
+
   .custom-table-wrapper {
     width: 710px;
     padding: 10px 10px 4px 10px;