add password reset link option

When enabled (in Settings > Password Resets), a magic link will be sent
instead of a PIN when the user tries reset their password. By doing
this the user doesn't have to keep the Jellyfin tab open to enter the
code.

main.go

@@ -308,6 +308,7 @@ func start(asDaemon, firstCall bool) {
 	app.storage.lang.FormPath = "form"
 	app.storage.lang.AdminPath = "admin"
 	app.storage.lang.EmailPath = "email"
+	app.storage.lang.PasswordResetPath = "pwreset"
 	externalLang := app.config.Section("files").Key("lang_files").MustString("")
 	var err error
 	if externalLang == "" {