Rename export API to compile

🚀 The feature, motivation and pitch

Seems like there were previous discussions to rename export() API which takes in recipes to compile(..)

https://github.com/pytorch/executorch/blob/main/export/export.py#L429

def export(
    model: Union[nn.Module, Dict[str, nn.Module]],
    example_inputs: Union[
        List[tuple[torch.Tensor, ...]], Dict[str, List[tuple[torch.Tensor, ...]]]
    ],
    export_recipe: ExportRecipe,
    name: Optional[str] = None,
    dynamic_shapes: Optional[Union[Any, Dict[str, Any]]] = None,
    constant_methods: Optional[Union[Dict[str, Callable]]] = None,
    artifact_dir: Optional[str] = None,
) -> "ExportSession":

CC: @kimishpatel, @cbilgin, @JacobSzwejbka

Alternatives

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Additional context

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RFC (Optional)

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