[fix] Support non latin characters in schema names (#5063)

Fixes #4943

## How was it tested?
Local (front + /metadata)
Unit tests for utils

---------

Co-authored-by: Weiko <corentin@twenty.com>

packages/twenty-server/src/engine/metadata-modules/utils/validate-metadata-name.utils.ts

@@ -0,0 +1,9 @@
+import { InvalidStringException } from 'src/engine/metadata-modules/errors/InvalidStringException';
+
+const VALID_STRING_PATTERN = /^[a-zA-Z][a-zA-Z0-9 ]*$/;
+
+export const validateMetadataName = (string: string) => {
+  if (!string.match(VALID_STRING_PATTERN)) {
+    throw new InvalidStringException(string);
+  }
+};