Use min-height for selector accommodation

client/src/components/History/CurrentHistory/HistoryOperations/SelectionOperations.vue

@@ -402,6 +402,6 @@ export default {
 <style>
 .modal-with-selector {
     overflow: initial;
-    height: 300px; /* To make room for the selector */
+    min-height: 300px; /* To make room for the selector */
 }
 </style>