android: fix initializing soloader from Activity context

It has to be an application context.

android/sdk/src/main/java/org/jitsi/meet/sdk/ReactInstanceManagerHolder.java

@@ -174,7 +174,7 @@ class ReactInstanceManagerHolder {
             return;
         }
 
-        SoLoader.init(activity, /* native exopackage */ false);
+        SoLoader.init(activity.getApplication(), /* native exopackage */ false);
 
         List<ReactPackage> packages
             = new ArrayList<>(Arrays.asList(