Add download for google font version 1

inc/Engine/Optimization/GoogleFonts/Combine.php

@@ -75,7 +75,19 @@ public function optimize( $html ): string {
 			return $html;
 		}
 
-		$html = preg_replace( '@<\/title>@i', '$0' . $this->get_optimized_markup( $this->get_combined_url() ), $html, 1 );
+		$version  = 1;
+		$font_url = $this->get_combined_url();
+
+		$html = preg_replace( '@<\/title>@i', '$0' . $this->get_optimized_markup( $font_url ), $html, 1 );
+
+		/**
+		 * Filter v1 google fonts that will be stored locally.
+		 *
+		 * @param string $font_url The combined url of the fonts
+		 * @param string $provider The fonts provider
+		 * @param integer $version  The version of Google fonts api
+		 */
+		wpm_apply_filters_typed( 'null', 'rocket_host_google_fonts', $font_url, 'google-font', $version );
 
 		foreach ( $fonts as $font ) {
 			$html = str_replace( $font[0], '', $html );