Feature request: add more JSON prompts in the workbench settings to allow distinguishing of sent and received code and output

as discussed in: #5069

System details:

Positron and OS details:

Positron Version: 2024.11.0 (Universal) build 69
Code - OSS Version: 1.93.0
Commit: 4cde19a003d09cf75114ec8650020b132bbc5554
Date: 2024-10-21T02:48:15.195Z
Electron: 30.4.0
Chromium: 124.0.6367.243
Node.js: 20.15.1
V8: 12.4.254.20-electron.0
OS: Darwin arm64 24.0.0

Interpreter details:

R 4.4.1

Describe the issue:

Console does not color distinguish code prompts sent and received to the console.

Steps to reproduce the issue:

1. First, install.packages("palmerpenguins") and install.packages("tidyverse") in Rstudio and Positron
2. In positron and Rstudios, send to the console penguins_raw |> select(Species, Island, Region)
3. Observe output in Console in both Rstudios and Positron

Rstudio output:

Positron output:

Expected or desired behavior:

Positron settings JSON file should have a bit more extensive customization of console output to mimic similar console output behavior to Rstudios. Similar to how you can currently call "positronConsole.foreground": "#dec5f0dc" in the settings JSON, to customize the console text color, there should be an option to call, or be able to customize the console output to better differentiate the different objects sent and returned on the console for streamline workflow similar to Rstudios behavior when sending and receiving from the console.

Were there any error messages in the UI, Output panel, or Developer Tools console?

NA

Start with the workbench settings handling for the existing positronConsole.foreground option and trace how console text is styled. Define configurable distinctions for sent code, received code, and output, then verify that the settings produce separate console appearances comparable to the requested RStudio behavior.