Rename some class from Impl to Default

libraries/pushstore/impl/src/main/kotlin/io/element/android/libraries/pushstore/impl/clientsecret/DefaultPushClientSecret.kt

@@ -29,7 +29,7 @@ import javax.inject.Inject
 
 @SingleIn(AppScope::class)
 @ContributesBinding(AppScope::class, boundType = PushClientSecret::class)
-class PushClientSecretImpl @Inject constructor(
+class DefaultPushClientSecret @Inject constructor(
     private val pushClientSecretFactory: PushClientSecretFactory,
     private val pushClientSecretStore: PushClientSecretStore,
     private val sessionObserver: SessionObserver,

libraries/pushstore/impl/src/main/kotlin/io/element/android/libraries/pushstore/impl/clientsecret/DefaultPushClientSecretFactory.kt

@@ -23,7 +23,7 @@ import java.util.UUID
 import javax.inject.Inject
 
 @ContributesBinding(AppScope::class)
-class PushClientSecretFactoryImpl @Inject constructor() : PushClientSecretFactory {
+class DefaultPushClientSecretFactory @Inject constructor() : PushClientSecretFactory {
     override fun create(): String {
         return UUID.randomUUID().toString()
     }

libraries/pushstore/impl/src/test/kotlin/io/element/android/libraries/pushstore/impl/clientsecret/DefaultPushClientSecretTest.kt

@@ -28,12 +28,12 @@ private val A_USER_ID_1 = SessionId("@A_USER_ID_1:domain")
 
 private const val A_UNKNOWN_SECRET = "A_UNKNOWN_SECRET"
 
-internal class PushClientSecretImplTest {
+internal class DefaultPushClientSecretTest {
     @Test
     fun test() = runTest {
         val factory = FakePushClientSecretFactory()
         val store = InMemoryPushClientSecretStore()
-        val sut = PushClientSecretImpl(factory, store, NoOpSessionObserver())
+        val sut = DefaultPushClientSecret(factory, store, NoOpSessionObserver())
 
         val secret0 = factory.getSecretForUser(0)
         val secret1 = factory.getSecretForUser(1)