Improve Document to Folder to Workspace UXUI

[korgano]

There are multiple issues with uploading multiple documents and trying to organize them into folders before adding to a workspace in the current UI.

1. The button for moving uploaded documents into folders does not support more than ~5 options.
2. Attempting to upload some of the documents, add them to the workspace, then upload more documents before embedding all documents wipes whatever documents have been assigned to be added to the workspace.
3. There is no way to specify a folder to upload documents to before the upload attempt is made.

As a result, the easiest way I've found to handle lots of documents is the following:

1. Upload all the documents to the default folder.
2. Go to the storage directory.
3. Create a new folder.
4. Enter the default folder.
5. Cut all documents you intend to use.
6. Navigate the new folder.
7. Paste documents into the new folder.

My suggestion would be to separate out upload and document management into different UI panes, as well as offer the option to create a new folder on upload of multiple documents.