fix: Button style on Home Page

[joanaBrit]

The “Join our Slack” button on the Home Page needs to be updated.

Please check if we already have a reusable button and use it if possible.

The button should:

• Have a border
• Have rounded corners
• Do not have an underline on the text
• Typography (Double-clicks on Figma button text to see this)

Please check the Figma design for details. If something is not clear, leave a comment.

Mobile

• Use the same style as the desktop
• The button should be centered

Now:

How it should be: