Werk #15400: HW/SW Inventory: Do not show empty sub tree

Component	HW/SW inventory
Title	HW/SW Inventory: Do not show empty sub tree
Date	Jun 12, 2023
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.3.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.2.0p4 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.1.0p30 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

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