Add template for app issues

.github/ISSUE_TEMPLATE/app_issue.md

@@ -0,0 +1,30 @@
+---
+name: App issue
+about: Report a bug or issue with the InvenTree app
+title: "[APP] Enter bug description"
+labels: bug, app
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of the bug or issue
+
+**To Reproduce**
+Steps to reproduce the behavior:
+
+1. Go to ...
+2. Select ...
+3. ...
+
+**Expected Behavior**
+A clear and concise description of what you expected to happen
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem
+
+**Version Information**
+
+- App platform: *Select iOS or Android*
+- App version: *Enter app version*
+- Server version: *Enter server version*