Buttons with icons are higher on the page then buttons without

[brodo]

Describe the bug
Buttons with icons are higher on the page then buttons without icons.

To reproduce
Steps to reproduce the behavior:

1. Go to https://codesandbox.io/embed/ui5-webcomponents-lclt9?fontsize=14

Isolated example
https://codesandbox.io/embed/ui5-webcomponents-lclt9?fontsize=14
The buttons should all be next to each other. The buttons with icons should not be closer to the top of the page then the ones without.

Screenshots

Context

• UI5 Web Components version
• OS/Platform: Mac OS
• Browser (if relevant): Tested in Firefox Developer Edition, Brave and Safari. Happens in all of them. Firefox is worst Safari is best.

Affected components ui5-button, ui5-togglebutton