Add help text and fix URL validation to prepend https:// if missing

[JigyasuRajput]

Cambios propuestos:

• Added help text to the URL input form to guide users.
• Fixed validation to automatically prepend https:// to URLs if missing

Temas tratados:

• Closes Pantalla creacion de empresa campo url poco específico #562

Pruebas realizadas:

• Built and ran the application inside a Docker container without errors.
• Tested the URL input form with valid and invalid URLs (with and without https://).
• Verified the expected behavior in the Dockerized environment.

Cómo probar los cambios:

1. Navigate to the form with the URL input field.
2. Enter a URL without https:// (e.g., www.github.com) and save.
3. Verify that https:// is automatically added to the URL and saved correctly

Gracias por contribuir con el proyecto.

Estamos pendiente de revisar los cambios propuestos.

[facundobatista]

Great!

[facundobatista]

Hello! It looks a test is faling?

[facundobatista]

Need to fix test

[JigyasuRajput]

I've made the requested changes and ensured the tests are passing. Let me know if anything else needs to be addressed

[eduzen]

I don't see any change in this pr, only some empty lines removed @JigyasuRajput