cl-button Font-Size is unset

[DougAnderson444]

Hey there,

I've been experimenting with your library, it's really great.

I have noticed that the button sizes are not set in the library css, causing sometimes the buttons in inherit a (much larger) font size of parent.

cl-editor/src/Editor.svelte

Line 186 in bdb90d2

.cl-button {

I think is a css font-size: .4em; is added here, this should help fix the button size when embedded in other apps.