manifest: support direct share backward compatibility

ring-android/app/build.gradle

ring-android/app/proguard-rules.pro

ring-android/app/src/main/AndroidManifest.xml

...ndroid/app/src/main/java/cx/ring/client/HomeActivity.java

...a/cx/ring/dependencyinjection/JamiInjectionComponent.java

.../main/java/cx/ring/services/JamiChooserTargetService.java

...c/main/java/cx/ring/services/NotificationServiceImpl.java