📝 Reducing issue templates

[LVMVRQUXL]

📝 Description

We want to simplify the list of GitHub issue templates available to the essentials:

• 📝 Issue - Basic template for creating an issue.
• 🐛 Bug - Template for reporting a bug.
• 🔖 Release - Template for publishing a new version.
• 🔒 Security vulnerability - Template for reporting a security vulnerability.