Describe the bug
When I pull the resize button of the code editor, it doesn't the resize the code in the editor.

To Reproduce
Steps to reproduce the behavior:

1. Click the resize button on the code editor and drag it down
2. The code doesn't resize

Expected behavior
I expected the code to resize as I drag down the button.

Screenshots
If applicable, add screenshots to

https://emotion.sh/

After this change in Material UI: mui-org/material-ui#6115

Feature Request

Both of the templates in lib/generators/templates/app/javascript/controllers/ have some minor issues that could be easily addressed.

Describe the solution you'd like

• on line 29 of the application_controller.js.tt it shows ExampleReflex#demo but this could be simplified to Example#demo
• same thing happens on line 20 of the generic template
• in the generic