Add support fot REELS

In case REELS is set as the media_type, the current code has been overriding it.

In case media_type is  being passed, regardless if it's REELS or not, just skip it.

Author: picogp

src/Instagram/User/Media.php

@@ -78,8 +78,8 @@ public function create( $params ) {
             'params' => $params ? $params : array()
         );
 
-        if ( isset( $params[Params::VIDEO_URL] ) ) { // video container requires more params
-            $postParams['params'][Params::MEDIA_TYPE] = MediaTypes::VIDEO;
+        if ( isset( $params[Params::VIDEO_URL] ) && !isset( $postParams['params'][Params::MEDIA_TYPE] ) ) { // video container requires more params and to not overide  in case REELS is passed
+            $postParams['params'][Params::MEDIA_TYPE] = MediaTypes::VIDEO;    
         } elseif ( isset( $params[Params::CHILDREN] ) ) { // carousel container requires more params
             $postParams['params'][Params::MEDIA_TYPE] = MediaTypes::CAROUSEL;
         }
@@ -129,4 +129,4 @@ public function getParams( $params = array() ) {
     }
 }
 
-?>
+?>