Is your feature request related to a problem or challenge? Please describe what you are trying to do.

Current implementation of interleave kernel on StringViewArray reuses the existing buffers from source arrays, it's only reconstructing views specified by the interleaving operation. It's useful to also support interleave by reconstructing buffers. (For example, if the referenced elements are sparse)

Describe the solution you'd like

Provides an additional interface for StringViewArray to do interleave with deep copy buffers.

Describe alternatives you've considered

Additional context