disable user to select the same trait

[tcm390]

It's a little bit awkward if we could select the same trait. In this PR, I disable user to select the same trait.

issue:

https://user-images.githubusercontent.com/60634884/217965056-adc5e68a-9cdc-427d-a1f4-170fac9a74c9.mp4

result:

https://user-images.githubusercontent.com/60634884/217965074-29f01938-85de-4d1a-bf01-40a7dbf2c6b1.mp4

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[soulofmischief]

:rocket: