Add mod documentation in seven languages

locale/ui_en.properties

@@ -1,6 +1,4 @@
 # --- scenes/battle/winground.tscn ---
-mod_ui_base_name = UI
-mod_ui_base_desc = Engine UI subsystem: widget toolkit (Widget/ModWidget/lists), ViewBox background viewport, ToolBox toolbar, GameMenu/SaveIcon, notification panels, UiKit design system and DeviceInput.
 ui/battle/victory = Victory
 ui/battle/victory/return = Continue
 ui/battle/victory/loot_title = Loot:
@@ -102,6 +100,7 @@ ui/save/game_day = Day {day}, {time}
 ui/save/party_size = Party: {count}
 
 # --- GameMenu ---
+menu/title = Menu
 menu/resume = Resume
 menu/save = Save
 menu/load = Load