fix(examples): api shell example promise catch [skip ci]

examples/api/src/components/Shell.svelte

@@ -43,7 +43,7 @@
   }
 
   function kill() {
-    child.kill().then(() => onMessage('killed child process')).error(onMessage)
+    child.kill().then(() => onMessage('killed child process')).catch(onMessage)
   }
 
   function writeToStdin() {