✨ Gmail node (#856)

* ✨ Gmail node

* ⚡ Improvements

* ⚡ Improvements

* ⚡ Improvements to Gmail-Node

* ⚡ Additional improvements to Gmail-Node

Co-authored-by: Erin <erin2722@gmail.com>
Co-authored-by: ricardo <ricardoespinoza105@gmail.com>

packages/nodes-base/nodes/Google/Gmail/MessageLabelDescription.ts

@@ -0,0 +1,77 @@
+import {
+	INodeProperties,
+} from 'n8n-workflow';
+
+export const messageLabelOperations = [
+	{
+		displayName: 'Operation',
+		name: 'operation',
+		type: 'options',
+		displayOptions: {
+			show: {
+				resource: [
+					'messageLabel',
+				],
+			},
+		},
+		options: [
+			{
+				name: 'Add',
+				value: 'add',
+				description: 'Add a label to a message',
+			},
+			{
+				name: 'Remove',
+				value: 'remove',
+				description: 'Remove a label from a message',
+			},
+		],
+		default: 'add',
+		description: 'The operation to perform',
+	},
+] as INodeProperties[];
+
+export const messageLabelFields = [
+	{
+		displayName: 'Message ID',
+		name: 'messageId',
+		type: 'string',
+		default: '',
+		required: true,
+		displayOptions: {
+			show: {
+				resource: [
+					'messageLabel',
+				],
+				operation: [
+					'add',
+					'remove',
+				]
+			},
+		},
+		placeholder: '172ce2c4a72cc243',
+		description: 'The message ID of your email.',
+	},
+	{
+		displayName: 'Label IDs',
+		name: 'labelIds',
+		type: 'multiOptions',
+		typeOptions: {
+			loadOptionsMethod: 'getLabels',
+		},
+		default: '',
+		required: true,
+		displayOptions: {
+			show: {
+				resource: [
+					'messageLabel',
+				],
+				operation: [
+					'add',
+					'remove',
+				]
+			},
+		},
+		description: 'The ID of the label',
+	},
+] as INodeProperties[];