Captive portal: fix idle times in details popup
Explicitly cast $idle_time to integer.
(cherry picked from commit 07df3494bd9a508e568b4ae999369ec8b2d14ec2)
Captive portal: fix idle times in details popup
Explicitly cast $idle_time to integer.
(cherry picked from commit 07df3494bd9a508e568b4ae999369ec8b2d14ec2)