This commit modifies the Button component to switch the `variant` and
`color` props, ensuring consistency across various components that
utilize the Button. The changes include updates in the Alert, Modal,
Tooltip, and other components to reflect this new prop structure.
Additionally, several test and story files have been adjusted to
accommodate these changes, enhancing the overall component architecture.
Since the addition of tertiary-text variant, the original tertiary
variant has seen its background color changing from transparent to
greyscale-100, the change has impacted lots of components making
them look odd. So that's why I updated most of old tertiary to
tertiary-text.
Fixes#223
