Discussion improvements for groups

Show when a comment has been edited.

Closes #372

Hide the report functionnality for now

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

js/src/i18n/en_US.json

@@ -762,5 +762,7 @@
   "Leave group": "Leave group",
   "Remove": "Remove",
   "Update": "Update",
-  "Search…": "Search…"
+  "Search…": "Search…",
+  "Edited {ago}": "Edited {ago}",
+  "[This comment has been deleted by it's author]": "[This comment has been deleted by it's author]"
 }

js/src/i18n/fr_FR.json

@@ -763,5 +763,7 @@
   "{title} ({count} todos)": "{title} ({count} todos)",
   "© The OpenStreetMap Contributors": "© Les Contributeur⋅ices OpenStreetMap",
   "Update": "Éditer",
-  "Search…": "Rechercher…"
+  "Search…": "Rechercher…",
+  "Edited {ago}": "Édité {ago}",
+  "[This comment has been deleted by it's author]": "[Ce commentaire a été supprimé par son auteur]"
 }