Stepper: Handle User step differencies

[escapemanuele]

Context.

Start | Stepper

• Stepper is too low
• Login button is at the bottom in Stepper
• Content is smaller on Stepper due to additional margin

[github-actions[bot]]

OpenAI suggested the following labels for this issue:

• [Feature Group] Appearance & Themes: The issue pertains to the visual layout and positioning of elements within the Stepper component, which relates to appearance.
• [Feature] Authentication: The issue mentions the login button location, suggesting that it is relevant to the authentication process.
• [Feature] Site Settings: The issue addresses content size issues within the Stepper, indicating potential adjustments in site settings may be necessary.