feat: replace nameSpace with sessionNamespace everywhere

Signed-off-by: Gaurav Goel <gaurav@tor.us>

Author: grvgoel81

singlefactorauth/src/main/java/com/web3auth/singlefactorauth/SingleFactorAuth.kt

@@ -360,7 +360,7 @@ class SingleFactorAuth(
                             )
                             walletMap.addProperty("sessionId", sessionId)
                             walletMap.addProperty("platform", "android")
-                            walletMap.addProperty("namespace", "sfa")
+                            walletMap.addProperty("sessionNamespace", "sfa")
 
                             val walletHash =
                                 "b64Params=" + gson.toJson(walletMap).toByteArray(Charsets.UTF_8)
@@ -432,7 +432,7 @@ class SingleFactorAuth(
                                     params = gson.toJson(requestParams)
                                 ),
                                 appState = appState.let { it },
-                                namespace = "sfa"
+                                sessionNamespace = "sfa"
                             )
 
                             val signMessageHash =

singlefactorauth/src/main/java/com/web3auth/singlefactorauth/types/SignMessage.kt

@@ -6,7 +6,7 @@ data class SignMessage(
     val platform: String = "android",
     val request: RequestData,
     val appState: String? = null,
-    val namespace: String = "sfa"
+    val sessionNamespace: String = "sfa"
 )
 
 data class RequestData(