Format dates in a nicer way.

Before this change timestamps are shown to users like this:

	le 13/12/23 à 20:38

After this change it shows this:

	le 13 décembre 2023 à 20:38

This avoids some confusion for users who are often exposed to the "mm/dd/yy" format.
This resolves https://linuxfr.org/suivi/le-format-d-affichage-des-dates-est-ambigu

Author: Adrien Kunysz

app/helpers/node_helper.rb

@@ -117,9 +117,7 @@ def posted_by(content, user_link='Anonyme')
     end
     date_time    = content.is_a?(Comment) ? content.created_at : content.node.try(:created_at)
     date_time  ||= Time.now
-    date         = content_tag(:span, "le #{date_time.to_s(:date)}", class: "date")
-    time         = content_tag(:span, "à #{date_time.to_s(:time)}", class: "time")
-    published_at = content_tag(:time, date + " " + time, datetime: date_time.iso8601, class: "updated")
+    published_at = content_tag(:time, "le #{date_time.to_s(:posted)}", datetime: date_time.iso8601, class: "updated")
     caption      = content_tag(:span, "", class: "floating_spacer") +
                    content_tag(:span, "Posté par #{ user_link } #{ published_at }.".html_safe, class: "posted_by_spanblock")
     caption.html_safe

app/views/redaction/index.html.haml

@@ -45,7 +45,7 @@
             - if n.nb_editors > 0
               = "& #{pluralize n.nb_editors, "participant"}"
           %h3= link_to n.title, [:redaction, n]
-          Modifiée le #{n.updated_at.to_s :date} à #{n.updated_at.to_s :time}
+          Modifiée le #{n.updated_at.to_s :posted}
 
   %h2 #{pluralize @news.count, "dépêche"} en cours de modération
   - feed "Flux Atom des dépêches en cours de modération", "/redaction/news/moderation.atom"

config/initializers/time_formats.rb

@@ -1,7 +1,7 @@
 # encoding: UTF-8
 date_formats = {
   date:      '%d/%m/%y',
-  posted:    '%d/%m/%y à %H:%M',
+  posted:    ->(t) {I18n.l(t, format: :posted)},
   norloge:   '%H:%M:%S',
   norloge2:  '%Y-%m-%d %H:%M:%S',
   timestamp: '%Y%m%d%H%M%S'

config/locales/date.fr.yml

@@ -0,0 +1,4 @@
+fr:
+  time:
+    formats:
+      posted: '%d %B %Y à %H:%M'