fix(examples): prevent ibazel EOF

Fixes #2143

Author: cuyl

examples/create-react-app/BUILD.bazel

@@ -100,4 +100,10 @@ react_scripts(
         "start",
     ],
     data = _RUNTIME_DEPS,
+    tags = [
+        # This tag instructs ibazel to pipe into stdin a event describing actions.
+        # ibazel send EOF to stdin by default and `react-scripts start` will stop when getting EOF in stdin.
+        # So use this to prevent EOF.
+        "ibazel_notify_changes",
+    ],
 )