feat: add gitlab issue templates

.gitlab/issue_templates/Bug Report.md

+Summary describing the defect.
+
+## Steps to Reproduce
+
+1.  ...
+2.  ...
+3.  ...
+
+## Expected Result
+
+...
+
+## Actual Result
+
+...
+
+## Logs & configuration
+
+If applicable, please provide:
+
+- Contents of your `.env` or other configuration files. Keep in mind to remove any sensitive data like password, as the report will be visible publicly.
+- Logs: Any errors in your browser console. In Firefox you can reach it by pressing `CTRL + SHIFT + K`, in Chrome or Chromium via `CTRL + SHIFT + J`. If available, extracts of relevant server log files found under `aura/logs`.
+- The output of `docker compose ps --all`, ensuring all services are started successfully.
+
+## Environment
+
+Operating system and browser version.

.gitlab/issue_templates/Epic.md

+Parent:
+
+---
+
+Abstract of the goal.
+
+## Proposal
+
+Specification on implementation.
+
+## Sub Tasks
+
+- [ ] ...
+- [ ] ...
+
+## Dependencies
+
+- ...
+- ...