Art request - Update mini-crests

[corywatilo]

Now that we've updated our team crest designs, we should update the mini-crests to match.

New 10x crests

Current 1x mini-crests

Basically we should:

• Use the same (bolder) colors
• Use the same iconography
• While keeping the lower fidelity

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Mini-crests are currently only displayed on the careers page, but I'm slating to use them on an upcoming "Why PostHog?" page.

I'd also like to use them wherever we show team members:

(On hover, it would explain what they are.)