Unstructured-inference

* fix: store probabilities with `float` data type instead of `int`

* fix: Correctly assign mutable default value to variable in `LayoutElements` class

* fix: Correctly assign mutable default value to variable in `TextRegions` class

* refactor: remove layout analysis related code
* enhancement: Hide warning about table transformer weights not being loaded
* fix(layout): Use TemporaryDirectory instead of NamedTemporaryFile for Windows support
* refactor: use `numpy` array to store layout elements' information in one single `LayoutElements`
object instead of using a list of `LayoutElement`

fix: add input parameter validation to `fill_cells()` when converting cells to html

Fix syntax for generated HTML tables