Add pageable data widget

appengine/swarming/elements/res/imp/common/swarming-app.html

Index: appengine/swarming/elements/res/imp/common/swarming-app.html
diff --git a/appengine/swarming/elements/res/imp/common/swarming-app.html b/appengine/swarming/elements/res/imp/common/swarming-app.html
index 946aa32d01aa2b9ec97327945fb08eacea505138..fef74c38741dcb69364a472d8f2999fd7593cb56 100644
--- a/appengine/swarming/elements/res/imp/common/swarming-app.html
+++ b/appengine/swarming/elements/res/imp/common/swarming-app.html
@@ -260,6 +260,11 @@
         color: #999;
       }
 
+      button:disabled:hover {
+        background: initial;
+        cursor: initial;
+      }
+
       button.action:active {
         background-color: #A6CEE3;
         transition: background-color 0.1s color 0.1s cubic-bezier(0.4, 0, 0.2, 1);