Add i18n keys to en.json

app/soapbox/locales/en.json

@@ -778,6 +778,15 @@
   "group.tabs.all": "All",
   "group.tabs.members": "Members",
   "group.user_subheading": "Users",
+  "groups.discover.search.no_results.subtitle": "Try searching for another group.",
+  "groups.discover.search.no_results.title": "No matches found",
+  "groups.discover.search.placeholder": "Search",
+  "groups.discover.search.recent_searches.blankslate.subtitle": "Search group names, topics or keywords",
+  "groups.discover.search.recent_searches.blankslate.title": "No recent searches",
+  "groups.discover.search.recent_searches.clear_all": "Clear all",
+  "groups.discover.search.recent_searches.title": "Recent searches",
+  "groups.discover.search.results.groups": "Groups",
+  "groups.discover.search.results.member_count": "{members, plural, one {member} other {members}}",
   "groups.empty.subtitle": "Start discovering groups to join or create your own.",
   "groups.empty.title": "No Groups yet",
   "hashtag.column_header.tag_mode.all": "and {additional}",