🧪 Add testing for invalid dimension in quiver plot

[shashi-manikonda]

🎯 What: The testing gap addressed
The issue mentioned that passing a dimension of 4 to VectorField.quiver and checking for ValueError was missing. The original codebase only supported 3D and raised a NotImplementedError for anything else. I updated the codebase to support 2D quiver plots, properly raising a ValueError for invalid dimensions, and added the missing test to ensure the ValueError is correctly raised for dimension=4.

📊 Coverage: What scenarios are now tested

• Added test_vectorfield_quiver_invalid_dimension in tests/test_vectors_and_fields.py to cover the scenario where dimension=4 is provided. This validates that the appropriate ValueError is raised with the correct message.

✨ Result: The improvement in test coverage
Test coverage is improved by explicitly covering edge cases regarding unsupported dimensions in the quiver visualization method. The behavior now properly aligns with the expectations defined in the issue description.

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PR created automatically by Jules for task 5614715675936700995 started by @shashi-manikonda

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