setting battery percentage does not work anymore on KDE Plasma 6.5.4

KDE Plasma got updated to version 6.5.4 and now the feature for enabling the battery percentage does not work anymore. Even when showing it manually it gets reset again after next boot. I am enabling battery percentage via plasma-manager like so: ```nix { config , ... }: { programs.plasma = { # enable plasma-manager enable = true; # always override existing configs overrideConfig = true; # plasma configs should be immutable by default immutableByDefault = true; panels = [ # Windows-like panel at the bottom { location = "bottom"; floating = false; height = 40; widgets = [ { systemTray.items = { # We explicitly show bluetooth and battery shown = [ "org.kde.plasma.networkmanagement" "org.kde.plasma.volume" "org.kde.plasma.battery" "org.kde.plasma.bluetooth" "org.kde.plasma.systemtray" ]; # And explicitly hide networkmanagement and volume hidden = [ "org.kde.plasma.brightness" ]; configs.battery.showPercentage = true; }; } ]; hiding = "normalpanel"; } }; }; } ```