AuthProvider: Use actual device properties to generate anonymous auth

Applying 3b41525c50 again but with changes for
kotlinx.serialization

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/src/main/java/com/aurora/store/data/model/Auth.kt

@@ -19,10 +19,13 @@
 
 package com.aurora.store.data.model
 
+import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
 @Serializable
 data class Auth(
     val email: String,
+
+    @SerialName("authToken")
     val auth: String
 )

app/src/main/java/com/aurora/store/data/providers/AuthProvider.kt

@@ -112,7 +112,10 @@ class AuthProvider @Inject constructor(
     suspend fun buildAnonymousAuthData(): Result<AuthData> {
         return withContext(Dispatchers.IO) {
             try {
-                val playResponse = httpClient.getAuth(dispenserURL!!).also {
+                val playResponse = httpClient.postAuth(
+                    dispenserURL!!,
+                    json.encodeToString(spoofProvider.deviceProperties).toByteArray()
+                ).also {
                     if (!it.isSuccessful) throwError(it, context)
                 }