improve bug report template

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,25 +1,52 @@
+<!--
+This is a bug report tracker. New features are discussed in the forum: https://support.delta.chat
+
+Please fill out as much of this form as you can (leaving out stuff that is not applicable is ok).
+-->
+
 ---
-name: Bug report
+name: 🐞 Bug report
 about: Report something that isn't working.
 title: ''
 assignees: ''
 labels: bug
 ---
 
-<!--
-This is a bug report tracker. New features are discussed in the forum: https://support.delta.chat
 
-Please fill out as much of this form as you can (leaving out stuff that is not applicable is ok).
--->
+### 🐞 Describe the Bug
+
+A clear and concise description of what the bug is.
+
+---
+
+### 🔍 Steps to Reproduce
 
-- Android version:
-- Device:
-- Delta Chat version:
-- Expected behavior:
-- Actual behavior:
-- Steps to reproduce the problem:
-- Screenshots:
-- Logs:
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '...'
+3. Scroll down to '...'
+4. See error
+
+---
+
+### 🤔 Expected Behavior
+
+A clear and concise description of what you expected to happen.
+
+---
+
+### 📚 Context
+- **Delta Chat version**:
+- **Android version**:
+- **Device**:
+
+---
+
+### 📸 Screenshots 
+
+---
+
+### 📋 Logs
 
 <!--
 Debug logs can be copied from within the Delta Chat app with
@@ -31,4 +58,4 @@ Alternatively from the Android system log:
 Logs may contain private data 
 which shall be removed or anonymised prior to posting.
 -->
-
+---