[Enhancement]: Add a callout for referencing plugin UIDs

[derrickmehaffy]

Link to the documentation page or resource

https://docs.strapi.io/developer-docs/latest/developer-resources/database-apis-reference/entity-service/crud.html

Describe the bug

Several users (including EE customers) mentioned that they were confused on how to interact with the entityService for plugins.

Additional context

No response

Suggested improvements or fixes

It might be a good idea to reference a couple of plugin UIDs like plugin::upload.file or provide a link to the CLI docs for listing the content-type UIDs: https://docs.strapi.io/developer-docs/latest/developer-resources/cli/CLI.html#strapi-content-types-list

Related issue(s)/PR(s)

No response