Add single_files option to onlinehashcrack config

See merged PR #821

pwnagotchi/defaults.toml

@@ -37,6 +37,7 @@ main.plugins.webgpsmap.enabled = false
 main.plugins.onlinehashcrack.enabled = false
 main.plugins.onlinehashcrack.email = ""
 main.plugins.onlinehashcrack.dashboard = ""
+main.plugins.onlinehashcrack.single_files = false
 
 main.plugins.wpa-sec.enabled = false
 main.plugins.wpa-sec.api_key = ""