Provide template for sub-issue

and remove the auto-assignment to Shraddha and Sven.

Author: sven1103

.github/ISSUE_TEMPLATE/01-feature-request.yml

@@ -3,9 +3,6 @@ description: File a feature request.
 title: "[Please create a short, descriptive title]"
 labels: ["enhancement", "triage"]
 projects: ["qbicsoftware/25"]
-assignees:
-  - sven1103
-  - Shraddha0903
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/01-sub-issue.yml

@@ -0,0 +1,27 @@
+name: Sub-issue
+description: File a sub-issue.
+title: "[Provide a short descriptive title]"
+labels: ["sub-issue", "triage"]
+projects: ["qbicsoftware/25"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this sub-issue report!
+  - type: textarea
+    id: what-is-it-about
+    attributes:
+      label: What's the issue?
+      description: What part of the parent-issue is addressed here?
+      placeholder: What is the sub-issue about?
+      value: "A sub-issue to organise bigger issues into smaller parts."
+    validations:
+      required: true
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Code of Conduct
+      description: By submitting this issue, you agree to follow our [Code of Conduct](https://github.com/qbicsoftware/data-manager-app?tab=coc-ov-file).
+      options:
+        - label: I agree to follow this project's Code of Conduct
+          required: true

.github/ISSUE_TEMPLATE/02-bug-report.yml

@@ -3,9 +3,6 @@ description: File a bug report.
 title: "[Provide a short descriptive title]"
 labels: ["bug", "triage"]
 projects: ["qbicsoftware/25"]
-assignees:
-  - sven1103
-  - Shraddha0903
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/config.yml

@@ -1 +1,2 @@
 blank_issues_enabled: false
+