release: small fixes

* Resolved a critical issue that caused a fatal error when the width or height parameters were left empty in certain edge cases.

Author: selul

inc/app_replacer.php

@@ -643,6 +643,8 @@ public function url_has_dam_flag( $url ) {
 	 * @return string
 	 */
 	protected function get_optimized_image_url( $url, $width, $height, $resize = [] ) {
+		$width  = is_int( $width ) ? $width : 'auto';
+		$height = is_int( $height ) ? $height : 'auto';
 		$optimized_image = Optimole::image( $url, $this->settings->get( 'cache_buster' ) )
 			->width( $width )
 			->height( $height );

inc/url_replacer.php

@@ -230,8 +230,8 @@ private function normalize_image( $url, $original_url, $args, $is_uploaded = fal
 		$args = apply_filters( 'optml_image_args', $args, $original_url );
 		$image = Optimole::image( apply_filters( 'optml_processed_url', $url ), $this->active_cache_buster );
 
-		$image->width( ! empty( $args['width'] ) ? $args['width'] : 'auto' );
-		$image->height( ! empty( $args['height'] ) ? $args['height'] : 'auto' );
+		$image->width( ! empty( $args['width'] ) && is_int( $args['width'] ) ? $args['width'] : 'auto' );
+		$image->height( ! empty( $args['height'] ) && is_int( $args['height'] ) ? $args['height'] : 'auto' );
 
 		$image->quality( $args['quality'] );