@Pierluca's and @jbsv's comments

[ineiti]

• change name from SuffragiaBlock to SuffragiaBatch
• add prefixed.Snapshot

Thank you for opening a pull request with this project, please also:

• [x] add a brief description of your changes here
• [x] assign the PR to yourself, or to the person(s) working on it
• [x] start in draft mode and in progress pipeline in the project (if applicable)
• [x] if applicable, add this PR to its related issue by one of the special keywords Closing keywords
• once it's ready
  • [ ] put it in the Review or Ready4Merge pipeline in the project (if applicable)
  • [ ] remove draft
  • [ ] assign a reviewer