Bugfix/tableview insetgrouped

[tomcheung]

Summary

Fixed #463 Also update the accent color to make button visible

Note: You can change the style into "Inset Grouped" in storyboard to reproduce the issue

---

Before:

https://user-images.githubusercontent.com/9416042/155837320-cd60140d-bb19-41df-8747-5d5911fe78b0.mp4

After:

https://user-images.githubusercontent.com/9416042/155837323-991d5694-6d59-4d5b-a7d4-3d2f496ebbe5.mp4

Requirements (place an x in each of the [ ])

• [x] I've read and understood the Contributing guidelines and have done my best effort to follow them.
• [x] I've read and agree to the Code of Conduct.

[Juanpe]

Hi @tomcheung 👋🏼 ! I left a comment.

Thanks!

[Juanpe]

Thanks for the changes! 👍🏼

🚀