[DOCS] Port NPU GenAI Docs (#32446)

* Updated recommended component versions
* Restructured & simplified the page layout & narrative (LLM sections
are about LLM, whisper are about whisper)
* Removed some weird and obsolete statements

Ticket: EISW-161596
Preview:

https://openvino-doc.iotg.sclab.intel.com/EISW-161596-preview/openvino-workflow-generative/inference-with-genai/inference-with-genai-on-npu.html

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Co-authored-by: Dmitry Matveev <[email protected]>

Author: tsavina