Set cursor to pointer on file table in edit mode

Always set cursor css property to cursor for anchor elements in file
table widget

Change-Id: I5c84da3ad1e4f9d1889e3a9bd79e89ceaeebde3d
Signed-off-by: Dariusz Luksza <dariusz@luksza.org>

gerrit-gwtui/src/main/java/com/google/gerrit/client/change/file_table.css

@@ -40,6 +40,7 @@
 }
 .pathColumn a {
   color: #000;
+  cursor: pointer;
 }
 .commonPrefix {
   color: #888;