Update the string values for the error message while network scan.

Change the error message from "Error while searching for networks."
to "Couldn't find networks. Try again." according to the off-line
discussion with UX writer for Connectivity.

Bug: 72052945, 70530820
Test: Manual test
Change-Id: Ib923e7178de99e2a15b58f02f816485c33abf652
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 08819ef..38c5468 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -369,7 +369,7 @@
     <!-- Available networks screen, text when no networks are found -->
     <string name="empty_networks_list">No networks found.</string>
     <!-- Available networks screen, toast when an error is encountered when searching for networks -->
-    <string name="network_query_error">Error while searching for networks.</string>
+    <string name="network_query_error">Couldn\'t find networks. Try again.</string>
     <!-- Available networks screen, toast when registering on a specific network -->
     <string name="register_on_network">Registering on <xliff:g id="network">%s</xliff:g>\u2026</string>
     <!-- Available networks screen, toast when SIM card isn't allowed on a network -->