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

Fixes #4943

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

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

packages/twenty-front/src/modules/object-metadata/utils/validateMetadataLabel.ts

@@ -1,4 +1,4 @@
-const metadataLabelValidationPattern = /^[a-zA-Z][a-zA-Z0-9 ]*$/;
+const metadataLabelValidationPattern = /^[^0-9].*$/;
 
 export const validateMetadataLabel = (value: string) =>
   !!value.match(metadataLabelValidationPattern);