Fix #2057 Affichage de la langue du lien en prévisualisation

[Oumph]

• missing class to display flag on bookmarks during preview
• missing flags in some contrib CSS
• reorder langs in Redis to default to 'xx' (then 'fr', then sorted)

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Seems good, thanks !

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I'm rebasing the PR #296 with this one and I've just noticed that we also have a list of langs into application.coffee:

linuxfr.org/app/assets/javascripts/application.coffee

Lines 35 to 57 in f546634

	langs =
	fr: "Français"
	de: "Allemand"
	en: "Anglais"
	eu: "Basque"
	ct: "Catalan"
	cn: "Chinois"
	ko: "Coréen"
	da: "Danois"
	es: "Espagnol"
	ee: "Estonien"
	fi: "Finnois"
	el: "Grec"
	it: "Italien"
	ja: "Japonais"
	nl: "Néerlandais"
	no: "Norvégien"
	pl: "Polonais"
	pt: "Portugais"
	ru: "Russe"
	sv: "Suédois"
	xx: "!? hmmm ?!"
	wq: "Code/binaire"

Maybe you also want to update its order and add missing languages there ?

[Trim]

I'm rebasing the PR #296 with this one and I've just noticed that we also have a list of langs into application.coffee:

linuxfr.org/app/assets/javascripts/application.coffee

Lines 35 to 57 in f546634

	langs =
	fr: "Français"
	de: "Allemand"
	en: "Anglais"
	eu: "Basque"
	ct: "Catalan"
	cn: "Chinois"
	ko: "Coréen"
	da: "Danois"
	es: "Espagnol"
	ee: "Estonien"
	fi: "Finnois"
	el: "Grec"
	it: "Italien"
	ja: "Japonais"
	nl: "Néerlandais"
	no: "Norvégien"
	pl: "Polonais"
	pt: "Portugais"
	ru: "Russe"
	sv: "Suédois"
	xx: "!? hmmm ?!"
	wq: "Code/binaire"

Maybe you also want to update its order and add missing languages there ?

Ok, I've found where it's used: when you reorganize a news, there's a Add link button which use JavaScript to directly inject a new web form into the DOM.

So you certainly want to add missing language and reorder them to have same behavior everywhere.