Fix inconsistent bug template descriptions

[freyacodes]

Pull Request Etiquette

• [x] I have checked the PRs for upcoming features/bug fixes.
• [x] I have read the contributing guidelines.

Changes

• [ ] Internal code
• [ ] Library interface (affecting end-user code)
• [ ] Documentation
• [x] Other: Issue template

Closes Issue: N/A

Description

1. Removed a suggestion to leave a required field empty
2. Removed a request to put error information in a code block, when it is already formatted as such (and later contradicted)

I deliberately targeted the default branch due to the nature of the change.