Fix alignment of UUID and add scrollbar for overflow

https://screenshot.googleplex.com/P777NvJ2mnK

Change-Id: I0e1d8bb41cdbb048f83bc79f72d32de40cafb6d8
diff --git a/gr-checks/gr-create-checkers-dialog.html b/gr-checks/gr-create-checkers-dialog.html
index e9aad47..5c9656b 100644
--- a/gr-checks/gr-create-checkers-dialog.html
+++ b/gr-checks/gr-create-checkers-dialog.html
@@ -28,6 +28,9 @@
       #checkerIdInput[disabled] {
         background-color: var(--table-subheader-background-color);
       }
+      .uuid {
+        overflow: scroll;
+      }
     </style>
 
     <div class="gr-form-styles">
@@ -116,7 +119,8 @@
         </section>
 
         <section>
-          <span class="title"> UUID {{_uuid}}</span>
+          <span class="title"> UUID </span>
+          <span class="title uuid"> {{_uuid}} </span>
         </section>
 
         <section>