Gladys Assistant 4.82: Activity log & MQTT integration overhaul 🚀

[Terdious]

@mutmut

Be careful, if you reduce, it deletes the old values and if you increase again, you don’t get them back.

Oh, I hadn’t thought of that ^^ But maybe not (test to be done ^^), must be related to the fixes I made here: Purge des états : un bug de 2 ans corrigé + nettoyage automatique + page Tâches enrichie (PRs #2650, #2651, #2652) - #2 par guim31