fix: windowTitleEntry not displaying

[Rasinzz]

Before if you entered a custom windowTitleEntry for WarMenu.InputButton, the title would be blank rather than the custom entry. That is fixed in this commit.

Before: https://i.imgur.com/kBm2POR.png

After: https://i.imgur.com/1K3A6ih.png

[warxander]

Looks like you were confused about entries and texts. FMMC_MPM_NA is built-in game text entry, you shoudn't override it.

Instead, make your own entry and use it like this:

AddTextEntry('MY_ENTRY', 'My text')
WarMenu.InputButton('Button text', 'MY_ENTRY', ...)

[Rasinzz]

Good to know, thanks