Don't trigger tooltip on focusBack element

If Overlay's focusBack event has a tooltip associated with it, we don't
want to trigger it when automatically giving it focus when dismissing
the overlay. Accomplish this by immediately dismissing tooltips after
giving the element focus, which will clear out any tooltip timers.

Client/Script/inc/Overlay.js

@@ -86,10 +86,13 @@ const Overlay = new function() {
     this.dismiss = function() {
         const main = Overlay.get();
         const ret = animateOpacity(main, 1, 0, 250, true /*deleteAfterTransition*/);
-        Tooltip.dismiss();
 
         focusBack?.focus();
         focusBack = null;
+
+        // Dismiss after setting focus, as Tooltip's 'show on focus' behavior can be
+        // annoying if it's not the user that's setting focus
+        Tooltip.dismiss();
         for (const dismiss of dismissCallbacks) {
             dismiss();
         }