Rename password_reset config to passwordReset as it messes with config key generation

src/util/config/Config.ts

@@ -61,6 +61,6 @@ export class ConfigValue {
 	defaults: DefaultsConfiguration = new DefaultsConfiguration();
 	external: ExternalTokensConfiguration = new ExternalTokensConfiguration();
 	email: EmailConfiguration = new EmailConfiguration();
-	password_reset: PasswordResetConfiguration =
+	passwordReset: PasswordResetConfiguration =
 		new PasswordResetConfiguration();
 }