chore: 🔨 add better issue templates

[zuriscript]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[x] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] Documentation content changes
[ ] Other... Please describe:

What is the current behavior?

Initially, old-school issue templates were used.

What is the new behavior?

The new issue templates approach is applied providing templates for feature-requests as well as bug-reports

Does this PR introduce a breaking change?

[ ] Yes
[x] No