Remove VM from cache and destroy with spinner

src/commands/vm.ts

@@ -74,8 +74,14 @@ export function register(program: Command) {
     .command("destroy")
     .description("Stop and delete the VM")
     .action(async () => {
-      await vm.destroy()
+      const spin = spinner("Destroying VM")
-      console.log("✔ VM destroyed")
+      try {
+        await vm.destroy()
+        spin.succeed("VM destroyed")
+      } catch (err) {
+        spin.fail(String((err as Error).message ?? err))
+        process.exit(1)
+      }
     })
 
   vmCmd