Update issue templates

Author: JulianPrieber

.github/ISSUE_TEMPLATE/issue-template.md

@@ -0,0 +1,16 @@
+---
+name: Issue template
+about: Please include the following information in your issue, if applicable.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!--- Remove this section if it is not required for your issue -->
+
+Platform: `Ubuntu 22.04 LTS`
+Server type: `NGINX/Apache2 ...`
+PHP version: `8.1`
+
+[//]: # (Please make sure you have read the system requirements at https://llc.bio/req before submitting your issue.)