Extend poll choices more then 255 characters

@Berdir, @BramDriesen I want to discuss this feature. I have a client which is using Poll module to create photo competitions :)

He adds some code to choices:

<div class="photoswipe-gallery">
<a href="/sites/default/files/2023/10/27/pexels-craig-adderley-1563356_0.jpg" class="photoswipe" data-size="1024x682"><img src="/sites/default/files/styles/thumbnail/public/2023/10/27/pexels-craig-adderley-1563356_0.jpg" loading="lazy" width="100" height="60">
</a>
<a href="/sites/default/files/2023/10/27/pexels-isabella-mendes-341013_0.jpg" class="photoswipe" data-size="1024x678"><img src="/sites/default/files/styles/thumbnail/public/2023/10/27/pexels-isabella-mendes-341013_0.jpg" loading="lazy" width="100" height="60">
</a>
</div>

Now we can add HTML to choices, but only 255 symbols.

I changed choice field from

$fields['choice'] = BaseFieldDefinition::create('string')

to

$fields['choice'] = BaseFieldDefinition::create('string_long')

And PollChoiceDefaultWidget from

'#type' => 'textfield',

to

'#type' => 'textarea',
'#rows' => 1,

It looks like

Of course we need to update existing field definition.

Is there any chance to add feature to mainstream if I make a patch?

I've been thinking about this for a bit and I think we first need to check #3042995: Convert votes into entities → . It would also be nice to put CKEDITOR 5 on the poll question field so we could also allow for some markup like bold or italic text. I think I've seen another issue about this but can't find it at the moment.