feat: 无侧边模板样式调整

src/modules/paper-export/assets/styles/paper-temp-preview.scss

@@ -15,7 +15,7 @@
         .page-main-inner {
           padding: 60px 160px 80px 40px;
           &.page-main-noside {
-            padding: 60px;
+            padding: 60px 60px 80px;
           }
         }
         .page-column-side {

src/modules/paper-export/assets/styles/temp.css

@@ -11,7 +11,7 @@
   padding: 60px 160px 80px 40px;
 }
 .paper-page .page-box-A3.page-box-1 .page-main-inner.page-main-noside {
-  padding: 60px;
+  padding: 60px 60px 80px;
 }
 .paper-page .page-box-A3.page-box-1 .page-column-side {
   right: 10px;