build(types): use prettier conf on config.types.ts

Currently, the `packages/mermaid/src/config.type.ts` types file
(auto-generated via `pnpm run --filter mermaid types:build-config`)
uses the default prettier config.

Instead, we should use the prettier config in the Mermaid repo, as it's
slightly different from the default prettier config.

packages/mermaid/scripts/create-types-from-json-schema.mts

@@ -18,6 +18,7 @@ import { promisify } from 'node:util';
 
 import { load, JSON_SCHEMA } from 'js-yaml';
 import { compile, type JSONSchema } from 'json-schema-to-typescript';
+import prettier from 'prettier';
 
 import _Ajv2019, { type JSONSchemaType } from 'ajv/dist/2019.js';
 
@@ -207,6 +208,7 @@ async function generateTypescript(mermaidConfigSchema: JSONSchemaType<MermaidCon
     {
       additionalProperties: false, // in JSON Schema 2019-09, these are called `unevaluatedProperties`
       unreachableDefinitions: true, // definition for FontConfig is unreachable
+      style: (await prettier.resolveConfig('.')) ?? {},
     }
   );