Don't display stop watch top bar icon when disabled and hidden when click other place (#22374) (#22387)

Backport #22374

Fix #22286

When timetracking is disabled, the stop watch top bar icon should be
hidden. When the stop watch recording popup, it should be allowed to
hide with some operation. Now click any place on this page will hide the
popup window.

web_src/js/features/stopwatch.js

@@ -24,6 +24,7 @@ export function initStopwatch() {
     trigger: 'click',
     maxWidth: 'none',
     interactive: true,
+    hideOnClick: true,
   });
 
   // global stop watch (in the head_navbar), it should always work in any case either the EventSource or the PeriodicPoller is used.