chore: fix warnings on programs.{git,vscode} config

Signed-off-by: Andrei Jiroh Halili <[e-mail]>

shared/home-manager/git.nix

···
     lfs = {
       enable = true;
     };
-    userName = "Andrei Jiroh Halili";
-    userEmail = "[e-mail]";
+    settings.user = {
+      name = "Andrei Jiroh Halili";
+      email = "[e-mail]";
+    };
     signing = {
       key = "4D5E631758CB9CC45941B1CE67BFC91B3DA12BE8";
       signByDefault = true;
     };
-    aliases = {
+    settings.alias = {
       signoff = "commit --signoff";
       amend = "commit -a --amend";
       remotes = "remote -v";
···
       hard = "reset --hard";
       soft = "reset --soft";
     };
-    extraConfig = {
+    settings = {
       format = {
         signOff = true;
       };

shared/vscode/main.nix

···
   programs.vscode = {
     package = pkgs.vscode;
     enable = true;
-    extensions =
+    profiles.default.extensions = {
       forVscode [
         # themeing
         "GitHub.github-vscode-theme"
···
           name = "copilot";
           publisher = "GitHub";
           version = "1.388.0";
-          sha256 = "sha256-8fv+z+ksWYWDty1JPg6Pe5De1FdFLKmVC+hy8kF0s3g=";
+          sha256 = "sha256-wusgZJrLNEEptx5WZviRLjpibF0R4vTg5xK6ywZK9og=";
         })
-];
+     ];
   };
 }