The singular/plural form of the days played for Hardcore Worlds in world selection menu is incorrect

• Steps to reproduce the issue

1.Create a hardcore mode world

2.Enable the gamerule “show days played“

3.Exit the world, return to World Selection Menu

• Expected result: If you don’t finish the first day in game, it would show “hardcore (0 day)” in the world’s icon

• Actual result: it shows “0 days“, which is considered a singular/plural form grammatical error.

• However, it is correct for other situations: 1 day and 2days…