Remove hardcoded 'array' from config schema and document autocomplete

Author: fhammerschmidt

docs/docson/build-schema.json

@@ -355,14 +355,7 @@
       "properties": {
         "autocompleteConfig": {
           "type": "object",
-          "properties": {
-            "array": {
-              "type": "array",
-              "items": {
-                "type": "string"
-              }
-            }
-          },
+          "description": "A mapping to extend the autocompletion for a given type with an array of modules. E.g. `{ \"int\": [\"IntUtils\", \"IntExt\"] }` will extend the autocompletion of the `int` type with the values from `IntUtils` and `IntExt` modules.",
           "patternProperties": {
             "^[a-zA-Z0-9_.]+$": {
               "type": "array",