Purpose
=======

User tests have been made by the Product Owners team. It showed that the planners are not used by new users on Odoo due to several reasons (They are too static, too heavy to use,...)

Specification
=============

Remove the module and its different applications. The onboarding on the business flow will be improvement in the weeks to come.

* Share code between website and backend
* Do not do a [100ms - 500ms] RPC on each app change in the backend
but do it only if the planner is asked to be opened
* Use the Dialog class so that the planner is not broken
* Simplify/optimize code, use standard conventions, lint files, ...

Merge appswitcher navbar and app navbar.
Merge planner menu and user menu.

- Differentiate between the Community and Enterprise editions
in the version number. By adding this attribute on the global
odoo JS object in the web client bootstrap controller /web,
we can differentiate between versions easily on the client
side without extra RPC calls.

- Remove a couple of version-related RPC calls in case
the global version info is present in the JS environment

- Update "About" panel to display the edition info

- This commit also reverts 07fe5afc874b9527eac5408d9adc53a9a700aad3
which implemented the idea in a more limited way.

Closes #9625

* 'Help' has now its own dropdown, directly accessible in the systray, instead of being hidden in the Administrator dropdown
* 'About' has been moved there also
* We can access the planner through this dropdown, even if the planner is hidden (complete)

Also correctly left align the menu when there is a multi line item and
vertical-align all the elements of the header so that it does not look
broken when there is a multi line title.

fp's request

fp's request

It doesn't make sense and it obviously applies a different font
to the text of the button.