amazon-s3

Describe the bug

When using the editor, the buttons to save and cancel differ in order and appearance from the other buttons of the application.

To Reproduce

1. Open Filegator
2. Open the editor
3. See error

Expected behavior

The buttons should look the same and be in the same order as in the rest of the application.

Screenshots

Standard:
![NewFolder](https:

When an Item in the queue is added with incorrect type for the corresponding Data Mapper, the Job fails during planning, without any information about which datamapper/queue item id is involved.

Let's take a Data Mapper with a identifier of type int for instance. If we add foo to the deletion queue, the find will fail with a log like this:

{
  "EventData": {
    "Error": "ValueError