Reduce dependencies

[jreps]

The package has a lot of dependencies.

Looking at the code it should be easy to remove the following:
DT, lubridate, methods, purrr, readr, RJSONIO, rlang, rmarkdown, stringi, tibble, tidyselect

Plus maybe these:
scales, shinyglide, stringr, RColorBrewer

[ablack3]

I get this error message when I try to deploy the cohort diagnostics app to Posit Connect.

ℹ Capturing R dependencies with renv
The following package(s) were installed from an unknown source:
- OhdsiShinyModules [3.0.0]
- ReportGenerator   [1.15.0]
renv may be unable to restore these packages in the future.
Consider reinstalling these packages from a known source (e.g. CRAN).

One thing that is a bit tricky is that we now have two packages called ReportGenerator in the list of Darwin dependencies.
Can we consider removing the dependency on ReportGenerator?