Fix positron use

[DCEW]

Cannot run logger() within Positron:

`Error:
! Function showPrompt not found in RStudio
Hide Traceback
▆

1. └─projectlog::logger()
2. ├─svDialogs::dlgInput("Enter text to be appended")
3. └─svDialogs:::dlg_input.nativeGUI("Enter text to be appended")

4. └─svDialogs:::.rstudio_dlg_input(gui$args$message, gui$args$default)
   

5.   └─rstudioapi::showPrompt(...)
   

6.     └─rstudioapi::callFun("showPrompt", title, message, default)`
   

[DCEW]

latest Positron update will have showPrompt() supported as per my request!