Werk #12479: Fix "Availability table" report element rendering

Component	Reporting & availability
Title	Fix "Availability table" report element rendering
Date	Mar 18, 2021
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.1.0b1 Checkmk Enterprise (CEE), Checkmk MSP (CME) 2.0.0p2 Checkmk Enterprise (CEE), Checkmk MSP (CME)

To the list of all Werks