Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: "[Bug] [platform] your issue title"
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is and what you expected to happen.
+
+**System info**
+ - affected HTTP plugin version: [e.g. 2.1.1]
+ - affected platform(s) and version(s): [e.g. iOS 12.2]
+ - affected device(s): [e.g. iPhone 8]
+ - cordova version: [e.g. 6.5.0]
+ - cordova platform version(s): [e.g. android 7.0.0, browser 5.0.3]
+
+**Are you using ionic-native-wrapper?**
+ - ionic-native-wrapper version: [e.g. 5.8.0]
+ - did you check [ionic-native issue tracker](https://github.com/ionic-team/ionic-native/issues) for your problem?
+
+**Minimum viable code to reproduce**
+If applicable, add formatted sample coding to help explain your problem.
+
+e.g.:
+```js
+cordova.plugin.http.setDataSerializer('urlencoded');
+```
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.