add selectThumbnail component

src/renderer/component/publishForm/view.jsx

@@ -389,7 +389,6 @@ class PublishForm extends React.PureComponent<Props> {
                 updatePublishForm={updatePublishForm}
                 formDisabled={formDisabled}
               />
-              <p>status: {uploadThumbnailStatus}</p>
             </FormRow>
             <FormRow padded>
               <FormField

src/renderer/component/selectThumbnail/view.jsx

@@ -1,6 +1,6 @@
 // @flow
+import { STATUSES } from 'lbry-redux';
 import * as MODALS from 'constants/modal_types';
-import * as STATUSES from 'constants/thumbnail_upload_statuses';
 import React from 'react';
 import { FormField } from 'component/common/form';
 import FileSelector from 'component/common/file-selector';