[InferenceClient] Update inference documentation (#2776)

* Update inference documentation

* Update sambanova supported tasks

* Update table

* Fix tip

* improvements post-review

* add redirects

* reference Inference API warm models

Co-authored-by: Lucain <[email protected]>

* remove extra space

Co-authored-by: Lucain <[email protected]>

* squeeze provider <> task table

Co-authored-by: Lucain <[email protected]>

* remove documentation column

* small fix

Co-authored-by: Simon Brandeis <[email protected]>

* update inference client package reference intro

* Fix link

* fixes post-review

* Add text-to-speech and text-to-video examples

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Co-authored-by: Lucain <[email protected]>
Co-authored-by: Simon Brandeis <[email protected]>
Co-authored-by: Julien Chaumond <[email protected]>

Author: 4 people