[IMP] website: make refresh routes less visible

Primary color lets imagine that it is the primary action to be done to update
the routing. While it is just to refresh the url_from list if you have missing
route (new module installed, ...)

Maybe we should just remove this button at the end.

closes odoo/odoo#66919

Signed-off-by: Jérémy Kersten (jke) <jke@openerp.com>

addons/website/views/website_rewrite.xml

@@ -7,7 +7,7 @@
                 <form string="Website rewrite Settings">
                     <header>
                         <button name="refresh_routes" string="Refresh route's list" type="object"
-                                class="btn-primary"
+                                class="btn-light"
                                 attrs="{'invisible':[('redirect_type', '!=', '308')]}"
                         />
                     </header>