Use poll title in html title instead of "Nextcloud"

[christianwicke]

⚠️ This issue respects the following points: ⚠️

• I agree to follow Nextcloud's Code of Conduct.

Describe the goal you'd like to achieve

As a poll owner, I want to share public links with meaningful title, because it helps to make people vote.

When I share public links in messenger like Signal, there is currently no meaningful title showing:

I would like to show the poll title. For example, nuudel is doing that:

Describe possible solutions

I guess, the problem is the HTML title (head->meta->title). In the poll link (e.g. https://cloud.fg9.eu/index.php/apps/polls/s/d6LS3sOV ) the HTML title is just "Nextcloud". (As example Nuudel uses the poll title, see here: https://nuudel.digitalcourage.de/DC9H7MrXtmkakmIg )

Could you also use the poll title as the HTML title?

Additional context

No response

[dartcafe]

I think, we have to handle og correctly.