feat: add hability to customize group toast classes

[nelsonmestevao]

In my use case the need is related with the outside padding but I think it can be useful in other situations. This allows more freedom.

I am happy to improve anything that might not be following some expectation that I did not antecipate.

[sergchernata]

We need this right now, as well. In our case it's because we need to position the toast container as absolute, not fixed.

[srcrip]

Thank you! I will get this merged ASAP. I just want to give it a good review. Sorry I didn't see it earlier, my GH notifications just failed me.

[curtisault]

We need this right now, as well. In our case it's because we need to position the toast container as absolute, not fixed.

Can you not resolve this in the immediate by wrapping the component in the root app.html.heex with a span or div using class="absolute"?

[srcrip]

Thank you very much for your pr @nelsonmestevao. I ended up wanting to tweak things a little bit more, so I added the changes in f1d86a1. I hope you're not too disappointed if you wanted the contributor badge. If you make another improvement I'd be happy to merge it.

Let me know if that resolves what you need to do and we can close this, or if you need to add something else we can tweak this branch and merge it.

[srcrip]

Note that I have not released it yet so you'd have to point at master to try it out. It'd be great if you let me know if it works before I release it, but I may release it before then if I get too eager 😂

[nelsonmestevao]

Hey @srcrip, no worries :P

Thank you for improving this part. I will test and let you know soon 🙏

[nelsonmestevao]

Hey @srcrip, it works perfectly for my use case. Thank you very much 🙇