Werk #14117: Fix refresh of master sidebar snapin "Master control"

Component	User interface
Title	Fix refresh of master sidebar snapin "Master control"
Date	May 18, 2022
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.2.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.1.0 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

The snapin was static and not refreshed regularly. This could lead to misleading informations if other users switched toggle buttons.

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