[FIX][document_url] Remove error when clicking on add URL
BTW, completely refactored 😉. It turns out Odoo's framework is not that bad when you discover it. It's just not documented.
Without this patch, when you hover on the menu item, its background color does not change, and its cursor is a text one.
With this patch, the menu item styling matches those available in all surrounding menus.
[MIG] document_url
* bump version to 9.0.1.0.0 and make it installable
* Update JS structure
* Add css in order to be compliant with odoo style
* Add a README.rst and OCA conventions
* Improve selector
* add fr.po for fr translation
* open link with target='_blank'
In order to get visibility on https://www.odoo.com/apps the OCA board has
decided to add the OCA as author of all the addons maintained as part of the
association.
