Button Icon size does not change on Q-Tree default header

[jsormaz]

What happened?

if q-btn is used on a tree default header, the icon does not respect the button size

What did you expect to happen?

icon size should change with button size

Reproduction URL

https://codepen.io/Sormaz/pen/LYaZEzK?editors=101

How to reproduce?

1. go to the reproduction link
2. observe that all icons are the same size for different sized buttons

Flavour

Quasar CLI with Vite (@quasar/cli | @quasar/app-vite)

Areas

Components (quasar)

Platforms/Browsers

No response

Quasar info output

No response

Relevant log output

No response

Additional context

No response