New translations strings.xml (Basque)

app/src/main/res/values-eu/strings.xml

@@ -1031,6 +1031,8 @@
     <string name="frequency">Frequency</string>
     <string name="toot_per_day">%s statuses per day</string>
     <string name="date_range">Date range</string>
+    <string name="action_groups">Groups</string>
+    <string name="no_messages">No groups!</string>
     <plurals name="number_of_vote">
         <item quantity="one">boto %d</item>
         <item quantity="other">%d boto</item>