lock <comp> in collocations

src/view/modals.py

@@ -64,6 +64,7 @@ def edit_example(example, sense):
             result.append(h("span.example-component-button.example-component-none",
             {"on": {"click": role_msg(idx, "none")}}, "N"))
 
+        if "-" not in example.inner.other_attributes["structureName"]:
             result.extend([
                 h("span.example-component-button",
                 {"on": {"click": message.msg(message.ExampleComponentAdd, example_original, idx)}}, "+"),