Add replacement for i3 battery

The module doesn't work or exist anymore.
I use a lightwight battery icon instead which I add as a service to
start during login.

And I don't need the wifi thingy.

home.nix

@@ -226,4 +226,8 @@
     "PATH=${config.home.profileDirectory}/bin"
     "QT_XCB_GL_INTEGRATION=none"
   ];
+
+  systemd.user.services.batteryicon = import ./home/services/batteryicon.nix {
+    inherit pkgs;
+  };
 }

home/files/i3-blocks

@@ -40,20 +40,6 @@ command=[ -L /etc/php/8.0/cli/conf.d/20-xdebug.ini ] && echo "yes" || echo "no"
 interval=once
 signal=10
 
-# System info
-
-[wifi]
-instance=wlp2s0
-label=📡
-interval=10
-separator=false
-min_width=50
-
-# Battery indicator
-[battery]
-label=🔋
-interval=30
-
 # Date Time
 [time]
 command=date '+📅 %a %Y-%m-%d %H:%M:%S'; date '+📅 %a %d. %H:%M:%S'

home/services/batteryicon.nix

@@ -0,0 +1,18 @@
+{ pkgs }:
+
+{
+  Unit = {
+    Description = "Battery Icon";
+    PartOf = "graphical-session.target";
+  };
+
+  Service = {
+    ExecStart = "${pkgs.cbatticon}/bin/cbatticon -u 30";
+  };
+
+  Install = {
+    WantedBy = [
+      "default.target"
+    ];
+  };
+}