fix(ToggleButtonGroup): Fix broken css styles.

[olehnoskov-cengage]

Closes: #2141

What I did

• Fixed broken CSS styles for ToggleButtonGroup component.

Screenshots

Checklist

• [x] changeset has been added
• [x] Pull request is assigned, labels have been added and ticket is linked
• [x] Pull request description is descriptive and testing steps are listed
• [ ] Corresponding changes to the documentation have been made
• [ ] New and existing unit tests pass locally with the proposed changes
• [ ] Tests that prove the fix is effective or that the feature works have been added

How to test

Go to Storybook -> ToggleButtonGroup -> Alignment Example -> example should have correct css ctyles. Go to Storybook -> ButtonGroup -> Default -> example should have correct css ctyles.