chore: Re-evaulate issue template on Github

[colinmurphy]

Overview

Currently if you try a new support issue for the Toolkit, you are redirected to "Discussions".

We should re-evaluate and ensure that the community can easily create issues for plugins, docs etc.

Consider having different templates for issues - issue, documentation issue, example issue

[josephfusco]

Examples

Gutenberg

Next.js

Astro