docs: Add note for updated terminology (#11802)

# Which Problems Are Solved

For existing customers it could be hard to understand the new aligned
terms we have defined, if they are already used to the "old term"

# How the Problems Are Solved

Adding notes at the top of docs pages to state clearliy new and old
terms.

package.json

@@ -20,4 +20,4 @@
     "sass": "^1.97.3",
     "wait-on": "^9.0.3"
   }
-}
+}