Define Android namespace via Gradle

[twyatt]

Task :processDebugManifest
package="com.juul...." found in source AndroidManifest.xml: src/androidMain/AndroidManifest.xml.
Setting the namespace via a source AndroidManifest.xml's package attribute is deprecated.
Please instead set the namespace (or testNamespace) in the module's build.gradle file, as described here:
https://developer.android.com/studio/build/configure-app-module#set-namespace

[github-actions[bot]]

Test Results

  5 files    5 suites   31s :stopwatch: 17 tests 17 :heavy_check_mark: 0 :zzz: 0 :x: 19 runs  19 :heavy_check_mark: 0 :zzz: 0 :x:

Results for commit b5f0f5e0.

:recycle: This comment has been updated with latest results.

[twyatt]

Blocked by #187.