Changed submission name to add ID when downloading many submissions

@ mention of reviewers`

@Didayolo`

A brief description of the purpose of the changes contained in this PR.

This PR should solve the naming issue (#1548 ) by adding the ID to submission names like this : ID_82_program_2024_07_26_11_17_05.zip

Cleaned the code, by removing some comments.

A checklist for hand testing

• Download selected submissions

Any relevant files for testing

Checklist

• Code review by me
• Hand tested by me
• I'm proud of my work
• Code review by reviewer
• Hand tested by reviewer
• Ready to merge