feat: gains PA2024CH config

[jdhoffa]

After #81, main.R now expects a project_code in the config.yml (which it uses to select the appropriate ProjectParmeters file in https://github.com/RMI-PACTA/workflow.transition.monitor

Since we want to pull the PA2024CH project_code (and I didn't want to have that value appear in a general 2023Q4 config), I made a more specific PA2024CH section in the config.

Note: This will require a change in the .env file to run appropriately.

[AlexAxthelm]

@jdhoffa Is there a reason you didn't use the inherits keyword to have PA2024CH inherit from 2023Q4? (seems like it might have avoided #89)

[jdhoffa]

I think even if it were to inherit the confit, I would still have to select the PA2024CH as the R_CONFIG_ACTIVE.
And with the way it currently mounts things, would cause an issue.

I will think of a better solution when the time pressure is a little lessened :-)