Revisit dependencies with no direct usage

[jennybc]

Revisit dependencies with no direct usage

[gadenbuie]

devtools is most likely taking a dependency on miniUI (and therefore shiny) to avoid a dialog that pops up when running an addin in RStudio if the package isn't installed. The dialog is somewhat aggressive in that it prevents any addins from running if the miniUI package isn't installed. rstudio/rstudio#12078 argues for the removal of this check, but isn't currently on a roadmap for release in the RStudio IDE.

[hadley]

I think we just need to use the new technique that doesn't immediately load these namespaces.

[jennybc]

devtools actually makes use of lifecycle::deprecated(), so it makes sense to @importFrom.

OTOH these are expedient @importFroms, so we can convert them to use the new technique:

• miniUI::miniPage()
• profvis::profvis()
• urlchecker::url_check()