Pop Over button position issue fixed

[ShachiniMekala]

Checklist

• Test Coverage is 100% for the newly added code
• Storybook stories are added/updated for the changed areas
• Components standards defined in this document are followed
• Code is linted properly
• Developer testing is done for the affected areas
• Package version updated (not applicable to ent branch)
• Changelog.md updated on possible breaking (applicable to ent branch)

[rtamarasinghe]

Accepting merge since the wrongly spelled classes (positon) is used in multiple places already and changing it everywhere is complex, and can be done as a separate fix