Ver. 1.26.0 Improvement of public investment UI, etc.

Previously, the public investment command was unfriendly as it did not show the effect of the investment, but we have made it a little more friendly by displaying the results. Some public investments will now display changes in values after the investment. In addition, to prevent wasteful investments, investments will no longer be allowed if they are not expected to have any effect at all. Bug Fixes In rare cases, the dialog window becomes transparent, Fixed a bug that caused the dialog window to become transparent in rare cases and could not be fixed without restarting the game.