Consider setting Git LFS for images of visual tests

[latin-panda]

Description

To keep the repository size manageable, we can move the e2e visual test images to Git LFS.

Update the Readme to instruct collaborators to install Git LFS after cloning the repository.

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Checklist

• Does it need UI/UX design?
  • Yes. Describe the UI/UX requirements or attach a Figma link in the "Design" section.
  • No
• Does it need API design?
  • Yes. Specify the endpoints, methods, or data structures needed.
  • No
• Does it need design around state flow?
  • Yes. Outline the state flow requirements.
  • No
• Does it need a test plan?
  • Yes. Add the test plan as a comment in this task or attach the document.
  • No

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Additional Notes

• It came up from feedback here

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