[FIX] web: restore state session action dispatching at loadState

e935099 restored the /apps/<app> controller and introduced  a test.

Despite the test still working, the feature was broken at higher level with
19eacf7 refactoring.
Indeed, loadState was not called anymore even if state.sa existed.

Enterprise counterpart odoo/enterprise#5974

closes #38206

Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>

addons/web/static/src/js/chrome/web_client.js

@@ -141,7 +141,7 @@ return AbstractWebClient.extend({
             var stringstate = $.bbq.getState(false);
             if (!_.isEqual(self._current_state, stringstate)) {
                 var state = $.bbq.getState(true);
-                if (state.action || (state.model && (state.view_type || state.id))) {
+                if (state.sa || state.action || (state.model && (state.view_type || state.id))) {
                     return self.action_manager.loadState(state, !!self._current_state).then(function () {
                         if (state.menu_id) {
                             if (state.menu_id !== self.menu.current_primary_menu) {