fix(altText): Added check for altText when passed to client.upload

Author: sethk4783

src/config.ts

@@ -18,7 +18,7 @@
 /**
  * @private
  */
-const PICKER_VERSION = '1.29.3';
+const PICKER_VERSION = 'beta';
 
 /**
  * @private

src/lib/client.ts

@@ -475,7 +475,7 @@ export class Client extends EventEmitter {
       this.emit('upload.error', e);
     });
 
-    return upload.upload(file, options.altText);
+    return upload.upload(file, options && options.altText);
   }
 
   /**