Fix: p5 reference error in p5.MediaElement.loadPixels (ES module context)

[Homaid]

Resolves #7968

Changes:

• Fixed missing p5 reference when calling loadPixels from p5.MediaElement in ES module contexts.
• Ensured compatibility with both global and modular usage.

Testing:

• Verified MediaElement.loadPixels works in both global and ES module imports.

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Thank You!

[Homaid]

Hii @ksen0 @perminder-17

This PR fixes the p5 reference error in p5.MediaElement.loadPixels (#7968).
Could you please review when you have a moment? Thank you!

[perminder-17]

Hi @Homaid , I think the tests aren't passing, can you please have a look once?

[Homaid]

hey @perminder-17 Linting is passing, but the tests are still failing locally I’m investigating that part.