fix(ui): update docker snippet, replace button position (#526)

Description

• Update the docker snippet on the platform.
• Change button position for instance form.

Related issue

#526 (closed)

Examples

Checklist

• MR description has been reviewed
• MR changes are functionally tested
• MR does NOT have API/CLI changes OR there are API/CLI changes and they have been reviewed & DOCS ARE ADJUSTED (reference doc, etc)
• MR does NOT have UI changes OR there are UI changes and they have been reviewed & UX IS REVIEWED

Closes #526 (closed)