Mod naming rule and engine UI in engine mods

Mods are renamed by role (shell2d_base, menu_base, ui_base, live2d_base,
editor_tools, cthangover_story, cthangover_murakami, cthangover_party) and
every reference follows. Engine UI prefabs (dialog, answers, message, game
menu, inventory, map, skills) and their panel entries moved out of the story
mod into the subsystem mods; the card_novel and vn_starter_novel collections
are removed.

collections/dev_tools.json

@@ -16,7 +16,7 @@
       "locale": [
         { "lang": "ru", "name": "Редактор сценариев", "description": "Графовые инструменты для создания сценариев и сцен." }
       ],
-      "mods": ["tools>=1"]
+      "mods": ["editor_tools>=1"]
     },
     {
       "id": "validation",