Android: Duplicate permissions in Manifest

**Describe the bug**

When installing the Android `adb logcat` shows warnings regarding duplicate permissions in the Manifest.

**To Reproduce**

Install APK (or probably any other version)

**Expected behavior**

No warnings in the log

**Screenshots**

```
02-19 11:51:35.040 31937 31937 W PackageParser: Ignoring duplicate uses-permissions/uses-permissions-sdk-m: android.permission.INTERNET in package: com.github.jamulussoftware.jamulus at: Binary XML file line #19
02-19 11:51:35.041 31937 31937 W PackageParser: Ignoring duplicate uses-permissions/uses-permissions-sdk-m: android.permission.WRITE_EXTERNAL_STORAGE in package: com.github.jamulussoftware.jamulus at: Binary XML file line #21
```

**Operating system**

Android

**Version of Jamulus**

3.8.2rc1

Inspect the Android manifest used to build the APK and reproduce the installation while watching adb logcat for duplicate uses-permissions entries. Remove the duplicate declarations without changing required permissions, then verify that installing the APK produces no duplicate-permission warnings.

Written by the indexing model from the issue text.