Prevent configure dialog to occupy the entire screen

Screenshot: https://imgur.com/a/2LNtG8Z
Change-Id: I154f752534d841075d2e62eecfe88b8bd0f68b1c
diff --git a/gr-checks/gr-checkers-list.html b/gr-checks/gr-checkers-list.html
index 88d2045..b790268 100644
--- a/gr-checks/gr-checkers-list.html
+++ b/gr-checks/gr-checkers-list.html
@@ -55,6 +55,11 @@
         text-decoration: underline;
         cursor: pointer;
       }
+      #listOverlay {
+        max-width: 90%;
+        max-height: 90%;
+        overflow: auto;
+      }
     </style>
 
     <gr-overlay on-fullscreen-overlay-closed="_handleOverlayClosed" id="listOverlay" with-backdrop>