✨ Add MailerLite Node & Trigger (#1067)

* ✨ MailerLite Node & Trigger

* ⚡ Set correct name to node and trigger

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

@@ -0,0 +1,17 @@
+import {
+	ICredentialType,
+	NodePropertyTypes,
+} from 'n8n-workflow';
+
+export class MailerLiteApi implements ICredentialType {
+	name = 'mailerLiteApi';
+	displayName = 'Mailer Lite API';
+	properties = [
+		{
+			displayName: 'API Key',
+			name: 'apiKey',
+			type: 'string' as NodePropertyTypes,
+			default: '',
+		},
+	];
+}