Consume login client from data client library (commons-app#2894)

Fix actions for review client

Use data client library for notifications

With delete helper migrated to data client

With wikidata edits

With notifications and modifications migrated to data client

With upload migrated to retrofit

Delete unused code

Reuse thank interface from the library

Author: maskaravivek

app/src/test/kotlin/fr/free/nrw/commons/mwapi/OkHttpJsonApiClientTest.kt

@@ -5,6 +5,7 @@ import fr.free.nrw.commons.Media
 import fr.free.nrw.commons.TestCommonsApplication
 import fr.free.nrw.commons.kvstore.JsonKvStore
 import fr.free.nrw.commons.utils.CommonsDateUtil
+import junit.framework.Assert.assertEquals
 import okhttp3.HttpUrl
 import okhttp3.OkHttpClient
 import okhttp3.mockwebserver.MockResponse