[Findit] Add feedback button for manual triage.

appengine/findit/static/common.css

Index: appengine/findit/static/common.css
diff --git a/appengine/findit/static/common.css b/appengine/findit/static/common.css
index d4d08b31947f1527730930db6bf9187e405cc599..3d9ed35ca604a21f1858256e98abbeb299be8633 100644
--- a/appengine/findit/static/common.css
+++ b/appengine/findit/static/common.css
@@ -11,3 +11,27 @@ table td, table th {
   padding: 5px;
   border: 1px solid gray;
 }
+
+.triage-area {
+  border-radius: 7px;
+  display: inline-block;
+}
+
+.triage, .triaged {
+  display: block;
+  float: left;
+  vertical-align: middle;
+}
+
+.triage {
+  background-color: #e5e5e5;
+  cursor: pointer;
+}
+
+.triaged {
+  cursor: default;
+}
+
+.not-display, .hidden-row {
+  display: none;
+}