minor: show last opened tab on startup

...openbis/generic/client/web/client/application/Client.java

...t/web/client/application/framework/ComponentProvider.java

...ient/web/client/application/framework/DefaultTabItem.java

...ric/client/web/client/application/framework/ITabItem.java

...client/application/framework/LastHistoryTokenUpdater.java

...client/web/client/application/framework/MainTabPanel.java

...t/web/client/application/locator/HomeLocatorResolver.java

...b/client/application/ui/attachment/AttachmentBrowser.java

...c/client/web/client/application/ui/script/ScriptGrid.java

...isd/openbis/generic/shared/basic/dto/DisplaySettings.java

...mo/client/web/client/application/ClientPluginFactory.java