Changed according to review comment

Signed-off-by: Peter Kovář <[email protected]>

apps/dav/lib/Avatars/AvatarNode.php

@@ -61,7 +61,7 @@ public function get() {
 		ob_start();
 		if ($this->ext === 'png') {
 			imagepng($res);
-		} else if ($this->ext === 'jxl') {
+		} elseif ($this->ext === 'jxl') {
 			imagejxl($res);
 		} else {
 			imagejpeg($res);