adjust scss

src/client/styles/scss/_linkedit-preview.scss

@@ -1,16 +1,12 @@
-.popover {
-  .popover-body {
-    .linkedit-preview {
-      .page-editor-preview-body {
-        max-height: 70vh;
-        padding-top: 0px;
-        margin: 0px -10px 0px -10px;
-        .wiki {
-          width: 200%;
-          overflow-y: scroll;
-          transform: scale(0.5) translate(-50%, -50%);
-        }
-      }
+.linkedit-preview {
+  .page-editor-preview-body {
+    max-height: 70vh;
+    padding-top: 0px;
+    margin: 0px -10px 0px -10px;
+    .wiki {
+      width: 200%;
+      overflow-y: scroll;
+      transform: scale(0.5) translate(-50%, -50%);
     }
   }
 }