Extend poll information shown

[Sheldan]

General Information

• I have checked for similar issues on the Issue-tracker.
• I have updated to the latest version
• I have checked the branches or the maintainers' PRs for upcoming features fixes.

Description

Show unique users who voted in a poll.

Feature worth and general use

Currently no way to see how many people have voted, only the votes are shown, but if multiple votes are possible, this does not translate well.

Suggestions for implementation

No response