Update unpublished i18n files from 2.6.3 branch

i18n/nw_cs_CZ.ts

@@ -3858,7 +3858,7 @@
     <message>
       <location filename="../novelwriter/core/project.py" line="489"/>
       <source>Draft</source>
-      <translation>Návrh</translation>
+      <translation>Koncept</translation>
     </message>
     <message>
       <location filename="../novelwriter/core/project.py" line="490"/>

i18n/nw_ja_JP.ts

@@ -2324,7 +2324,7 @@
     <message>
       <location filename="../novelwriter/gui/statusbar.py" line="180"/>
       <source>Project word count (session change)</source>
-      <translation>プロジェクト単語数 (セッション中の変更)</translation>
+      <translation>プロジェクトの単語数 (セッション中の変更)</translation>
     </message>
     <message>
       <location filename="../novelwriter/gui/statusbar.py" line="182"/>

novelwriter/assets/i18n/project_ru_RU.json

@@ -1,6 +1,7 @@
 {
   "Synopsis": "Сводка",
   "Short Description": "Краткое описание",
+  "Footnotes": "Примечания",
   "Comment": "Комментарий",
   "Notes": "Заметки",
   "Tag": "Тэг",
@@ -13,6 +14,7 @@
   "Objects": "Объекты",
   "Entities": "Сущности",
   "Custom": "Другое",
+  "New Page": "Новая страница",
   "0": "Ноль",
   "1": "Один",
   "2": "Два",