extract settings handling into separate class

views/settings-page.php

@@ -1,29 +0,0 @@
-<?php
-/**
- * Liveticker: Settings page.
- *
- * This file contains the view model for the Plugin settings oage.
- *
- * @package Liveticker
- */
-
-if ( ! defined( 'ABSPATH' ) ) {
-	exit;
-}
-?>
-<div class="wrap">
-	<div id="icon-options-general" class="icon32"><br></div>
-	<h2>Liveticker <?php esc_html_e( 'Settings', 'stklcode-liveticker' ); ?></h2>
-	<?php
-	if ( isset( $_GET['settings-updated'] ) ) {	// phpcs:ignore
-		echo '<div class="updated"><p>' . esc_html__( 'Settings updated successfully.', 'stklcode-liveticker' ) . '</p></div>';
-	}
-	?>
-	<form action="options.php" method="post">
-		<?php
-		settings_fields( 'scliveticker_settings' );
-		do_settings_sections( 'scliveticker-settings-page' );
-		submit_button();
-		?>
-	</form>
-</div>