12660 bugapi create one person post api request example is returning 400 in playground (#12787)

Use faker to provide simple working examples for REST API create one,
create many, update one and find duplicates

Eg:
<img width="1505" alt="image"
src="https://github.com/user-attachments/assets/99be990f-efd6-4ad7-8c29-f9dcecac112f"
/>

packages/twenty-server/src/utils/camel-to-title-case.ts

@@ -1,5 +1,7 @@
 import { capitalize } from 'twenty-shared/utils';
 export const camelToTitleCase = (camelCaseText: string) =>
-  capitalize(camelCaseText)
-    .replace(/([A-Z])/g, ' $1')
-    .replace(/^./, (str) => str.toUpperCase());
+  capitalize(
+    camelCaseText
+      .replace(/([A-Z])/g, ' $1')
+      .replace(/^./, (str) => str.toUpperCase()),
+  );