added 'topic' back to string

public/language/en_GB/topic.json

@@ -26,14 +26,14 @@
 
 	"thread_tools.title": "Thread Tools",
 	"thread_tools.markAsUnreadForAll": "Mark Unread",
-	"thread_tools.pin": "Pin",
-	"thread_tools.unpin": "Unpin",
-	"thread_tools.lock": "Lock",
-	"thread_tools.unlock": "Unlock",
-	"thread_tools.move": "Move",
-	"thread_tools.fork": "Fork",
-	"thread_tools.delete": "Delete",
-	"thread_tools.restore": "Restore",
+	"thread_tools.pin": "Pin Topic",
+	"thread_tools.unpin": "Unpin Topic",
+	"thread_tools.lock": "Lock Topic",
+	"thread_tools.unlock": "Unlock Topic",
+	"thread_tools.move": "Move Topic",
+	"thread_tools.fork": "Fork Topic",
+	"thread_tools.delete": "Delete Topic",
+	"thread_tools.restore": "Restore Topic",
 
 	"load_categories": "Loading Categories",
 	"disabled_categories_note": "Disabled Categories are greyed out",