chore：Logo should be unified under

[juxianzheng]

Current State

Description of the current state/issue:The logo should be unified, for example, Tik-Tok Travel - the black background does not match the others

Link to the page:https://apisix.apache.org/zh/showcase/

Screenshots (if relevant):

Desired State

Description of the change you are proposing:
The logo should be unified, for example, Tik-Tok Travel - the black background does not match the others

Would you like to fix this issue?

Yes! Count me in

[SkyeYoung]

We already have an issue, this issue is duplicated, please close this. #580

[SkyeYoung]

Maybe you feel some discouragement, but I still want to tell you, please think more before you do.