Fix missing webview user agent.

Author: brandonpage

libs/SalesforceSDK/src/com/salesforce/androidsdk/ui/LoginActivity.kt

@@ -152,6 +152,7 @@ import kotlinx.coroutines.Dispatchers.Default
 import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.launch
 import org.json.JSONObject
+import java.lang.String.format
 import java.net.URI
 import java.net.URLDecoder
 import java.net.URLEncoder
@@ -191,9 +192,16 @@ open class LoginActivity : FragmentActivity() {
             webViewClient = this@LoginActivity.webViewClient
             webChromeClient = this@LoginActivity.webChromeClient
             setBackgroundColor(Color.Transparent.toArgb())
-            settings.domStorageEnabled = true /* Salesforce Welcome Discovery requires this */
-            @SuppressLint("SetJavaScriptEnabled")
-            settings.javaScriptEnabled = true
+            settings.apply {
+                domStorageEnabled = true /* Salesforce Welcome Discovery requires this */
+                @SuppressLint("SetJavaScriptEnabled")
+                javaScriptEnabled = true
+                userAgentString = format(
+                    "%s %s",
+                    SalesforceSDKManager.getInstance().userAgent,
+                    userAgentString ?: "",
+                )
+            }
         }
     }