It will close #619

It implements project customization new feature.

Remaining tasks

• Uploaded logo and any other images should be stored in a secure image storage system and easily accessible.
• Upon completion of customization, all provided information including logo, colors, header text, streaming URL, and additional information should be saved into the metadata field associated with the voting page.

Things to decide before merge

• Decide if we are going to implement a slug or a subdomain and how
• Find where to upload the logo
• How and when we are going to show this feature. Atm this is a hardcoded on the vite config features https://github.com/vocdoni/ui-scaffold/blob/refs/heads/f/project-customization/vite/features.ts#L10