Add main class file and fix linter

lint.sh

@@ -8,12 +8,12 @@ case $action in
 "check")
   composer update
   composer install
-  ./vendor/bin/phpcs -s omnisend-for-contact-form-7
+  ./vendor/bin/phpcs -s omnisend
   ;;
 "fix")
   composer update
   composer install
-  ./vendor/bin/phpcbf omnisend-for-contact-form-7
+  ./vendor/bin/phpcbf omnisend
   ;;
 *)
   echo "pass one of these argument: check,fix"

omnisend/class-omnisend-bootstrap.php

@@ -0,0 +1,26 @@
+<?php
+/**
+ * Omnisend plugin
+ *
+ * Plugin Name: Omnisend
+ * Description: Omnisend main plugin that enables integration with Omnisend.
+ * Version: 1.0.0
+ * Author: Omnisend
+ * Author URI: https://www.omnisend.com
+ * Developer: Omnisend
+ * Developer URI: https://developers.omnisend.com
+ * Text Domain: omnisend
+ * ------------------------------------------------------------------------
+ * Copyright 2024 Omnisend
+ * License: GNU General Public License v3.0
+ * License URI: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * @package OmnisendPlugin
+ */
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+class Omnisend_Bootstrap {
+}