[FIX] web: reset offset to 0 when searching for records

Scenario: Go to any list or kanban view: go to next page and set a
filter that matches less that 'limit' record (e.g. less than 40),
but at least one. No record will be displayed, because the offset
is kept for the search_read.

This rev. ensures to reset the offset to 0 when a search is done
using the searchview.

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

@@ -26,7 +26,7 @@ var ViewManager = Widget.extend(ControlPanelMixin, {
         search: function(event) {
             var d = event.data;
             _.extend(this.env, this._process_search_data(d.domains, d.contexts, d.groupbys));
-            this.active_view.controller.reload(_.extend({}, this.env));
+            this.active_view.controller.reload(_.extend({offset: 0}, this.env));
         },
         switch_view: function(event) {
             if ('res_id' in event.data) {