Conditionally declare incompatibility with WooCommerce HPOS

[felipeelia]

Is your enhancement related to a problem? Please describe.

Although WooCommerce made the woocommerce_hpos_pre_query filter available, the implementation of #3476 is not a small lift: as queries are built directly as SQL strings, we would need to translate them back to an Elasticsearch query.

In the meantime, we can conditionally declare the plugin incompatible with WooCommerce HPOS, using the snippet provided here.

We will need to account that:

1. We only run Elasticsearch queries for orders if both the WooCommerce AND the Protected Content features are enabled.
2. WooCommerce Orders Autosuggest works fine with HPOS (but only in compatibility mode)

Designs

No response

Describe alternatives you've considered

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