[RAPPS] Refresh item info after installer completes (#7697)

- Refresh the details view of the item that was just installed.
- Hint update of uninstallers list is needed.
- Restore focus correctly after installer process finishes.

CORE-17677

base/applications/rapps/misc.cpp

@@ -160,6 +160,8 @@ StartProcess(const CStringW &Path, BOOL Wait)
     {
         EnableWindow(hMainWnd, TRUE);
         SetForegroundWindow(hMainWnd);
+        // We got the real activation message during MsgWaitForMultipleObjects while
+        // we were disabled, we need to set the focus again now.
         SetFocus(hMainWnd);
     }