[erp5_configurator_standard_ui_test] Fix file uploading tests. Use setFile selenium command to avoid security error.

31804f68 was merged too soon.

/reviewed-on !913

It was possible that the previous server socket did not have enough time
to expire, which could cause an "Address already in use" exception.

url
- corresponding test added

- improve OfficeJS applications by reducing the quantity of code to be written and reuse the ERP5 configuration (portal_type, actions, forms, etc.) instead to generate the app

  The API changed on the slap, this commit follow up the changes.

Which is useful when debugging tests

Some files in the Skin Folder was not deleted by mistake

/reviewed-on nexedi/erp5!914

'only_visible' in essence checks 'Add portal content',
But here we care for View permission really, since user can have worklist in a document
even if he/she does not have the rights to add content to the module.

otherwise naturalWidth/naturalHeight may be 0

Domains are not meant to display too many documents at the same level.

Domains are not meant to display too many documents at the same level.

Domains are not meant to display too many documents at the same level.

/reviewed-on nexedi/erp5!830

Avoids accumulating useless connections when a single test file contains
multiple files.

Sorting on all documents is a performance killer.

In case no query parameter is available, do not trigger any allDocs
calculation and do not display the listbox, as results would be
meaningless.