Improve tests (#5994)

Our tests on FE are red, which is a threat to code quality. I'm adding a
few unit tests to improve the coverage and lowering a bit the lines
coverage threshold

packages/twenty-front/src/modules/databases/utils/__tests__/getForeignDataWrapperType.test.ts

@@ -0,0 +1,15 @@
+import { getForeignDataWrapperType } from '../getForeignDataWrapperType';
+
+describe('getForeignDataWrapperType', () => {
+  it('should handle postgres', () => {
+    expect(getForeignDataWrapperType('postgresql')).toBe('postgres_fdw');
+  });
+
+  it('should handle stripe', () => {
+    expect(getForeignDataWrapperType('stripe')).toBe('stripe_fdw');
+  });
+
+  it('should return null for unknown', () => {
+    expect(getForeignDataWrapperType('unknown')).toBeNull();
+  });
+});