fix: partner page artists performance

[brainbicycle]

This PR resolves PHIRE-1054

Description

Fix bad performance in partner page due to using non-paginated endpoint.

Before

After

PR Checklist

• [x] I have tested my changes on iOS and Android.
• [x] I hid my changes behind a feature flag, or they don't need one.
• [x] I have included screenshots or videos, or I have not changed the UI.
• [x] I have added tests, or my changes don't require any.
• [x] I added an app state migration, or my changes do not require one.
• [x] I have documented any follow-up work that this PR will require, or it does not require any.
• [x] I have added a changelog entry below, or my changes do not require one.

To the reviewers 👀

• [ ] I would like at least one of the reviewers to run this PR on the simulator or device.

Changelog updates

### Changelog updates #### Cross-platform user-facing changes - #### iOS user-facing changes - #### Android user-facing changes - #### Dev changes -

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[ArtsyOpenSource]

	Warnings
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