chore: Add recommended extensions

Author: ibuziuk

.vscode/extensions.json

@@ -0,0 +1,8 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+      "github.vscode-pull-request-github",
+      "RooVeterinaryInc.roo-cline"
+    ]
+}