Possibility to turn the mourning off and on

[KamilPacanek]

Prerequisites

• [x] I am running the latest alpha version of MineColonies for my Minecraft version.
• [x] I checked the MineColonies/Structurize wiki and made sure that my issue is not covered there.
• [x] I made sure that this change request is not a duplicate of any existing change request.

Context

• Minecraft Version: 1.20.1
• MineColonies Version: 1.20.1-1.1.581-BETA
• Related Mods and their Versions: -

Is your feature request related to a problem?

I think mourning mechanism should be a toggle feature, that player can turn on and off depending in their liking.

Enhancement or Change description

Add config value that disabled/enables mourning.

Notes or related things

Already prepared a PR for that.

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