Feat: Adds module for server-side processing of data before rendering `reactable`

Closes Appsilon/issues_archive#7 Closes Appsilon/issues_archive#1

Changes description

Adds shiny module reactableExtrasUI() and reactableExtrasServer() for server-side processing.
reactableExtrasUI() is a wrapper for reactable::reactableOutput() that page navigation UI to the reactable element.
reactableExtrasServer() is a wrapper for reactable::renderReactable() and reactable::reactable() for rendering the server-processed data to a reactable element.

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