compat: update deprecated config formats

config/config.nix

@@ -31,11 +31,9 @@ in
   networking.networkmanager.enable = true;
 
   # Power button settings
-  services.logind = {
-    extraConfig = ''
-        HandlePowerKey=ignore
-        HandlePowerKeyLongPress=poweroff
-      '';
+  services.logind.settings.Login = {
+    HandlePowerKey = "ignore";
+    HandlePowerKeyLongPress = "poweroff";
   };
 
   # Set your time zone.

home-manager/tools.nix

@@ -23,13 +23,14 @@
 
   programs.git = {
     enable = true;
-    userName = fullname;
-    userEmail = email;
 
     signing.key = "6CB106C25E86A9F7";
     signing.signByDefault = true;
 
-    extraConfig = {
+    settings = {
+      user.name = fullname;
+      user.email = email;
+
       github.user = "kiana-S";
       credential.helper = "store";
       safe.directory = [ "/etc/nixos" ];
@@ -38,8 +39,13 @@
       init.defaultBranch = "main";
     };
 
-    delta.enable = true;
-    delta.options = {
+  };
+
+  programs.delta = {
+    enable = true;
+    enableGitIntegration = true;
+
+    options = {
       features = "decorations";
       relative-paths = true;