Chinese localization keep updating

This MR is for keep updating the rest localization contents for ToME4, for updated texts entries in latest version. Hope it would be a text update only.

game/engines/default/data/locales/engine/zh_hans.lua

@@ -223,6 +223,30 @@ t("Fifth Hotkey 9", "第五快捷键 9", "_t")
 t("Fifth Hotkey 10", "第五快捷键 10", "_t")
 t("Fifth Hotkey 11", "第五快捷键 11", "_t")
 t("Fifth Hotkey 12", "第五快捷键 12", "_t")
+t("Six Hotkey 1", "第六快捷键 1", "_t")
+t("Six Hotkey 2", "第六快捷键 2", "_t")
+t("Six Hotkey 3", "第六快捷键 3", "_t")
+t("Six Hotkey 4", "第六快捷键 4", "_t")
+t("Six Hotkey 5", "第六快捷键 5", "_t")
+t("Six Hotkey 6", "第六快捷键 6", "_t")
+t("Six Hotkey 7", "第六快捷键 7", "_t")
+t("Six Hotkey 8", "第六快捷键 8", "_t")
+t("Six Hotkey 9", "第六快捷键 9", "_t")
+t("Six Hotkey 10", "第六快捷键 10", "_t")
+t("Six Hotkey 11", "第六快捷键 11", "_t")
+t("Six Hotkey 12", "第六快捷键 12", "_t")
+t("Seven Hotkey 1", "第七快捷键 1", "_t")
+t("Seven Hotkey 2", "第七快捷键 2", "_t")
+t("Seven Hotkey 3", "第七快捷键 3", "_t")
+t("Seven Hotkey 4", "第七快捷键 4", "_t")
+t("Seven Hotkey 5", "第七快捷键 5", "_t")
+t("Seven Hotkey 6", "第七快捷键 6", "_t")
+t("Seven Hotkey 7", "第七快捷键 7", "_t")
+t("Seven Hotkey 8", "第七快捷键 8", "_t")
+t("Seven Hotkey 9", "第七快捷键 9", "_t")
+t("Seven Hotkey 10", "第七快捷键 10", "_t")
+t("Seven Hotkey 11", "第七快捷键 11", "_t")
+t("Seven Hotkey 12", "第七快捷键 12", "_t")
 t("Previous Hotkey Page", "上一页快捷键", "_t")
 t("Next Hotkey Page", "下一页快捷键", "_t")
 t("Quick switch to Hotkey Page 2", "快速切换到快捷键第2页", "_t")