Add default values for ColorButton in case theme does not use the defaults

[chrisapplegate]

Hi there - big fan of this component. However, it glitches a little bit visually in my custom MUI theme, see below:

The reason for this is my custom theme, I have forced default values for Button's variant and disableElevation props to be different from the MUI defaults, namely:

export const MuiButton = {
  defaultProps: {
    variant: "outlined",
    disableElevation: true,
  },
...

But the ColorButton component in this package assumes the default props for Button are the same as MUI's. Therefore to fix this I have added in the props to force it to always have variant="text" and disableElevation={false}, so it is always the same as the MUI default props even if a custom theme has been applied.