style: update style

frontend/src/views/dashboard/editor/Toolbar.vue

@@ -272,6 +272,7 @@ const previewInner = () => {
       height: 24px;
       font-size: 16px;
       width: 300px;
+      font-weight: 500;
       overflow: hidden;
       cursor: pointer;
       color: #1f2329;
@@ -324,6 +325,8 @@ const previewInner = () => {
 
 .back-icon {
   margin-top: 8px;
+  width: 20px;
+  height: 20px;
 }
 
 .toolbar-hover-icon {

frontend/src/views/dashboard/editor/index.vue

@@ -105,7 +105,7 @@ const baseParams = computed(() => {
   border-radius: 12px;
   position: relative;
   background: #f5f6f7;
-  box-shadow: 0px 4px 8px 0px rgba(31, 35, 41, 0.1);
+  box-shadow: 4px 4px 8px 4px rgba(31, 35, 41, 0.2);
   overflow: hidden;
   width: 100%;
   height: 100%;