scrolling! (#413)

* scrolling

* added additional scroll

nerfactory/viewer/app/src/index.scss

@@ -73,6 +73,7 @@ $custom-border: solid 1px $base-color1;
   border: $custom-border;
   z-index: 999;
   text-align: center;
+  overflow: auto;
 }
 
 .Leva-container > div {
@@ -188,10 +189,9 @@ $sidebar-width: 100% !default;
 
 .CameraList-container {
   position: relative;
-  height: 600px;
-  overflow: scroll;
-  border: solid 1px $highlight-color1;
+  height: 250px;
   padding: 2px;
+  overflow: auto;
 }
 
 .CameraList-row {