Fix: super sidebar wrong app logo

What does this MR do and why?

Related to https://jihulab.com/gitlab-cn/gitlab/-/issues/2946

Related upstream mr: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/120401

• fix the _logo.svg resource content of jh, because the property fill of the letter G is incorrect
• fix the super sidebar logo in jh

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