Polls

[elsa-decidim]

https://docs.decidim.org/en/develop/admin/components/meetings/polls

[x] Page structure (changes needed)
[x] Screenshots up to date
[x] Typos
[x] No broken hyperlinks

[elsa-decidim]

TYPO CHECK:

Participants**'** answers can be exported through the "Export all" button in CSV, JSON, Excel and PDF.