Advanced Editor Changes for Decaf

[tn3rb]

This PR:

• adds the following flags to the core config:

  • isCaffeinated
  • isDecaf
  • isMultiSite

• adds an isCaffeinated check before loading the Add New Date button (decaf)

• fixes icon classes for the entity list legends (before) (after)

[!IMPORTANT]
this PR requires the Cafe NEW/CORE/decaf-edtr branch

[alexkuc]

Running E2E against Cafe branch NEW/CORE/decaf-edtr

https://github.com/eventespresso/barista/actions/runs/10225516091 ✅

[alexkuc]

Please ignore default failing E2E as it runs against default Cafe branch, unlike the url above

[Saam01]

This works fine for me.