documentation: Flask-Wiki integration

[jma]

This new module will be used to create the public documentation
dedicated to the users and the librarians.

• Adds Flask-Wiki dependency.
• Adds Flask-Wiki default configuration.
• Creates permissions to limit the wiki edition to a dedicated user.
• Fixes bootstrap toast js and css to avoid external module collusion.
• Moves head.html template code to the main page to be able to overwide
  the css block.
• Includes Flask-Wiki translations.
• Removes useless code in the Dockerfile.
• Adds specific css for markdown figures.
• Creates fixtures for the dev instance and for the tests.

Co-Authored-by: Johnny Mariéthoz [email protected]
Co-Authored-by: Igor Milhit [email protected]

Why are you opening this PR?

• To implement a simple solution to create the public pages documentation.

How to test?

• pipenv run bootstrap; pipenv run setup
• go to the help page
• login with the editor account account
• create you first documentation page
• save
• try to upload a new image file
• integrate this new image link in a help page

Code review check list

• Commit message template compliance.
• Commit message without typos.
• File names.
• Functions names.
• Functions docstrings.
• Unnecessary commited files?

[benerken]

In your commit message, at the point "How to test ?" , could you please add a word about the "setup" needed after the bootstrap ?
Because without a setup , the new stuff (editor role,...) are not created in the local instance. :-\
Thank you !

[benerken]

After a test, the language switch (french <-> english) doesn't work.
It stays on the french version.
Any idea ?

[jma]

In your commit message, at the point "How to test ?" , could you please add a word about the "setup" needed after the bootstrap ?
Because without a setup , the new stuff (editor role,...) are not created in the local instance. :-
Thank you !

Oups, sorry. It is done.

[jma]

After a test, the language switch (french <-> english) doesn't work.
It stays on the french version.
Any idea ?

Yes I works at it supposed to be. If you are in a page without suffixes (_en, _fr, etc.), it will display the page in the language interface if it is exists else the default. You can try it for the documentation root. Only english, french and default exists. The default is the fallback. But in the documentation pages the links are done explicitly in the page language i.e. in the french home page the links contains suffixes thus once you are in the sub pages you cannot switch the language unless the links are changed to default. It is up to the editor.