chore: add GitHub Copilot and Copilot Chat extensions to VSCode configuration

Author: KatoakDR

.vscode/extensions.json

@@ -4,6 +4,8 @@
     "DotJoshJohnson.xml",
     "esbenp.prettier-vscode",
     "foxundermoon.shell-format",
+    "GitHub.copilot",
+    "GitHub.copilot-chat",
     "mariusschulz.yarn-lock-syntax",
     "mikestead.dotenv",
     "redhat.vscode-commons",