image_original => image_1920 (now resized to 1920)
image_big => image_1024
image_large => image_256
image_medium => image_128
image_small  => image_64
image replaced by image_1920 (when writing) or by image_1024 (when displaying
	what was previously the big size)

+ add new intermediate format:
image_512

PR: #34925

Improve overall widget layout, perform some small tweaks. Also remove
top title as it is not wanted.

Commit linked to task ID 1941250 and PR #31977

This commit makes the 'Fullscreen' page a complete odoo
widgets. We decided to split it into some sub widget:
- Fullscreen: will be the master piece, handle communication of
components, displaying slide content, setting slide as completed,
handling server RPC calls, ....
- Sidebar: responsible for slide navigation, based on the table of
content. (prev, next, keyboard naviguation, ...)
- VideoPlayer: display content for Youtube video and handling player
event to auto set as completed, ...

The DOM of this page is still rendered serverside. DOM was cleaned in
order to be less complex and less deep. CSS style was also reviewed
to decrease line of code.

Fullscreen is now completely using Quiz widget with events triggered.

Task-1942852

This commit makes the quiz widget a real odoo widget that triggers up some
events. The widget is now only responsible of

 * fetching quiz data (if not given)
 * decorating the anwsers according to the result
 * displaying message (error or modal)

To do so, some code move/rewrite was needed

 * extract and factorize some template
 * add 'sudo' on technical model to avoid access rights error
 * factorize some python method from controller to model
 * remove some CSS classes to lighten the code
 * fixing access model error
 * make quiz widget handle the display of error message
 * give browse record for template rendering, rather than slug
 * cleaning some spaghetti code in Fullscreen widget
 * ...

Commit linked to task ID 1941250 and PR #31584.

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>

Purpose of this commit is to perform some linting and cleaning in lesson widget
JS and its related css. Notably for fullscreen widget of eLearning. Containing

 * better naming of css classes;
 * deleted sidebar file as it is now included directly in the fullscreen
   widget;
 * removed unused css;
 * apply JS linting;
 * clean some controllers;

Commit linked to task ID 1942852 and PR #31394.

- slidesChannelDropdownSort : dropdown items back to visible (was white on white)
- Featured lesson : change icon to bullhorn instead of + icon
- Pass certification fullscreen button : btn primary
- set max height to fullscreen content to 100% minus header
- Fix 'infographic' slide type image view
- change image for 'Furniture Technical Specifications' course
- fix fullscreen presentation mode: The condition to add the iframe that
  contains the presentation of the document was wrong and, so, never met.
  Those conditions are evaluated in javascript and not in python as it's part
  of t-name template linked to a javascript widget.

Commit linked to task ID 1941250 and PR #31279.

Purpose of this commit is to introduce a new way of displaying and managing
slides in eLearning module. Its purpose is to give a better experience to
users when going through a course. Notably a fullscreen mode allows to take
lessons one by one without going out of the elearning display. Integration
of all slide types eases taking the course step by step.

Quiz are introduced in this commit. Those are an addition to slides with
some question / answers (multiple choice). It allows customer to gain karma
and improves gamification. Certifications are still done using the survey
application. Quiz targets only small tests at the end of a given slide.

A new widget is added to display and control slide display in fullscreen
mode. Old display is still available for documentation channels or when
going out of fullscreen mode, to see details on comments / review / statistics
and have access to share options.

This commit is linked to task ID 1902304 and PR #29876. It closes the main
work on refactoring website slides into eLearning, with other tasks already
merged in current community [1][2][3][4][5].

[1] Task ID 1940360 landed at b2149bc7a274217a0b96e587abd52093bd98e5e8: certification inclusion
[2] Task ID 1936153 landed at 6c6179e57cede3d9889c33873740a7b1ddecda2e: homepage inclusion
[3] Task ID 1937160 landed at 8b7605c9e5df4a700b0139d1781db24ae5d31626: selling courses
[4] Task ID 1922159 and 1940516 landed at 5fa651cb013ac67d7ba592498c4cf2770dec2483 and 6a64c3ce821f080969e49e5e760e52ae9bfc26cc:
    new user profile and gamification of slides / forum
[5] Task ID 1938643 landed at 77b5673a0dd220b3c28e88f8acbb5274b486c5bd: upload channel/slide