Allow to join an open group

Also:

* Refactor interacting with a remote event so that you can interact with
  a remote group as well
* Add a setting for group admins to pick between an open and invite-only
  group
* Fix new groups without posts/todos/resources/events/conversations URL
  set
* Repair local groups that haven't got their
  posts/todos/resources/events/conversations URL set
* Add a scheduled job to refresh remote groups every hour
* Add a user setting to pick when to receive notifications when there's
  new members to approve (will be used when this feature is available)
* Fix pagination for members

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/i18n/en_US.json

@@ -277,7 +277,6 @@
   "Publish": "Publish",
   "Published events with <b>{comments}</b> comments and <b>{participations}</b> confirmed participations": "Published events with <b>{comments}</b> comments and <b>{participations}</b> confirmed participations",
   "RSS/Atom Feed": "RSS/Atom Feed",
-  "Redirecting to event…": "Redirecting to event…",
   "Region": "Region",
   "Register an account on Mobilizon!": "Register an account on Mobilizon!",
   "Registration is allowed, anyone can register.": "Registration is allowed, anyone can register.",
@@ -733,7 +732,6 @@
   "Group {groupTitle} reported": "Group {groupTitle} reported",
   "Error while reporting group {groupTitle}": "Error while reporting group {groupTitle}",
   "Reported group": "Reported group",
-  "You can only get invited to groups right now.": "You can only get invited to groups right now.",
   "Join group": "Join group",
   "Created by {username}": "Created by {username}",
   "Accessible through link": "Accessible through link",
@@ -790,5 +788,14 @@
   "This group doesn't have a description yet.": "This group doesn't have a description yet.",
   "Find another instance": "Find another instance",
   "Pick an instance": "Pick an instance",
-  "This website isn't moderated and the data that you enter will be automatically destroyed every day at 00:01 (Paris timezone).": "This website isn't moderated and the data that you enter will be automatically destroyed every day at 00:01 (Paris timezone)."
+  "This website isn't moderated and the data that you enter will be automatically destroyed every day at 00:01 (Paris timezone).": "This website isn't moderated and the data that you enter will be automatically destroyed every day at 00:01 (Paris timezone).",
+  "We will redirect you to your instance in order to interact with this group": "",
+  "New members": "New members",
+  "Anyone can join freely": "Anyone can join freely",
+  "Anyone wanting to be a member from your group will be able to from your group page.": "Anyone wanting to be a member from your group will be able to from your group page.",
+  "Manually invite new members": "Manually invite new members",
+  "The only way for your group to get new members is if an admininistrator invites them.": "The only way for your group to get new members is if an admininistrator invites them.",
+  "Redirecting to content…": "Redirecting to content…",
+  "This URL is not supported": "This URL is not supported",
+  "This group is invite-only": "This group is invite-only"
 }

js/src/i18n/fr_FR.json

@@ -870,5 +870,14 @@
   "{profile} (by default)": "{profile} (par défault)",
   "{title} ({count} todos)": "{title} ({count} todos)",
   "{username} was invited to {group}": "{username} a été invité à {group}",
-  "© The OpenStreetMap Contributors": "© Les Contributeur⋅ices OpenStreetMap"
+  "© The OpenStreetMap Contributors": "© Les Contributeur⋅ices OpenStreetMap",
+  "We will redirect you to your instance in order to interact with this group": "",
+  "New members": "Nouveaux·elles membres",
+  "Anyone can join freely": "N'importe qui peut rejoindre",
+  "Anyone wanting to be a member from your group will be able to from your group page.": "N'importe qui voulant devenir membre pourra le faire depuis votre page de groupe.",
+  "Manually invite new members": "Inviter des nouveaux·elles membres manuellement",
+  "The only way for your group to get new members is if an admininistrator invites them.": "La seule manière pour votre groupe d'obtenir de nouveaux·elles membres sera si un·e administrateur·ice les invite.",
+  "Redirecting to content…": "Redirection vers le contenu…",
+  "This URL is not supported": "Cette URL n'est pas supportée",
+  "This group is invite-only": "Ce groupe est accessible uniquement sur invitation"
 }

js/src/i18n/langs.json

@@ -10,7 +10,7 @@
   "fi": "suomi",
   "fr": "Français",
   "gl": "Galego",
-  "hu": "Magyar nyelv",
+  "hu": "Magyar",
   "it": "Italiano",
   "ja": "日本語",
   "kn": "Kannada",