Update avatar urls

[npaton]

Is there an existing issue for this?

• I have searched the existing issues

What happened?

The avatar service we use in our experiment template has changed. See https://github.com/orgs/dicebear/discussions/374.

We should update the template with the new url format in the next release.

Steps To Reproduce

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Empirica Version

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What OS are you seeing the problem on?

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What browser are you seeing the problem on?

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Relevant log output

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Anything else?

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Code of Conduct

• I agree to follow this project's Code of Conduct

[npaton]

For anyone wanting to change this in their existing experiment, change this url in client/src/components/Avatar.jsx from:

https://avatars.dicebear.com/api/identicon/${player.id}.svg

To:

https://api.dicebear.com/7.x/identicon/svg?seed=${player.id}

Note that you can this avatar service offers other avatars if you prefer. You just need to change the name of the avatar kind from identicon to what you chose, such as big-ears. Check them out here: https://www.dicebear.com/playground/