Allow parameter broadcasting in `AmplitudeEmbedding` with TensorFlow

[dwierichs]

Feature details

As of #2810, embedding templates support parameter broadcasting, including AmplitudeEmbedding except for usage with Tensorflow, which is raising a dedicated error currently. To reach feature parity, one would have to figure out how to pad the parameter-broadcasted amplitudes and normalize them correctly across the non-broadcasting dimension.

Implementation

No response

How important would you say this feature is?

1: Not important. Would be nice to have.

Additional information

No response