Change copy for first row in filtered search

app/views/shared/issuable/_search_bar.html.haml

@@ -25,7 +25,7 @@
                 %button.btn.btn-link
                   = icon('search')
                   %span
-                    Keep typing and press Enter
+                    Press Enter or click to search
             %ul.filter-dropdown{ data: { dynamic: true, dropdown: true } }
               %li.filter-dropdown-item
                 %button.btn.btn-link