Enable chat in OO apps

www/common/onlyoffice/inner.js

@@ -750,6 +750,7 @@ define([
 
             var configTb = {
                 displayed: [
+                    'chat',
                     'userlist',
                     'title',
                     'useradmin',
@@ -827,8 +828,8 @@ define([
                 initializing = false;
                 setEditable(!readOnly);
                 UI.removeLoadingScreen();
+                common.openPadChat(APP.onLocal);
             });
-
         };
 
         config.onRemote = function () {

www/common/onlyoffice/main.js

@@ -103,7 +103,8 @@ define([
         SFCommonO.start({
             type: 'oo',
             addData: addData,
-            addRpc: addRpc
+            addRpc: addRpc,
+            messaging: true
         });
     });
 });