⚡ Fix some InvoiceNinja-Node issues

packages/nodes-base/credentials/InvoiceNinjaApi.credentials.ts

@@ -0,0 +1,23 @@
+import {
+	ICredentialType,
+	NodePropertyTypes,
+} from 'n8n-workflow';
+
+export class InvoiceNinjaApi implements ICredentialType {
+	name = 'invoiceNinjaApi';
+	displayName = 'Invoice Ninja API';
+	properties = [
+		{
+			displayName: 'URL',
+			name: 'url',
+			type: 'string' as NodePropertyTypes,
+			default: 'https://app.invoiceninja.com',
+		},
+		{
+			displayName: 'API Token',
+			name: 'apiToken',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+		},
+	];
+}