In 12.0 9de1bc0e aria-label translation was added for python views, but:

- aria-label attribute are not exported

- aria-label are not translated for JS view rendering

So by default, aria-label would only be translated for python views that
had the same aria-label term in a translatable element (eg. "title"
attribute).

opw-2222504
closes #48255

closes odoo/odoo#48275

X-original-commit: 6b6b11ea2f8391f1f195bd1650531f77b6bed729
Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>

The kanban view uses a template which comes from the server, already
translated.  Before this commit, it tried to retranslate again the
template in qweb.js, which may be a problem (in addition to the useless
work): if some english string A is translated in B (french), but B is
also a valid english string which is translated into C in french, then
we will have a wrong result.

In this commit, we simply add a flag to disable the translation process, which
should also slightly improve the kanban view rendering performance.

This commit introduce a full redesign of all JS views.  We started
basically from scratch.  The goal was to unify all the various views
under a common framework, to make them testable, to make then usable in
different conditions (in studio, or in the frontend), and to make our
lives easier.

Some important points are:
- we introduced new coding guidelines (camelCase, 80 chars width, ...)
- we have a brand new testing framework (still QUnit based)
- kanban view moved to the web addon
- calendar view (formerly web_calender) moved to web as well
- the tree view was removed
- all new code should be documented

We hope that this code is the start of a new era for the Odoo web
client, we want to have a high quality codebase, well documented, well
tested, well designed.

Work done by the framework team: mostly aab, ged, chm, dmo, qsm