Fix world deletion cancel not working (#408)

When the deletion is canceled, the screen is still ConfirmScreen, so the
`if` condition needs to also check for that alongside ProgressScreen
(when deletion succeeds and there is at least one world left).

Fixes #406

patches/net/minecraft/client/gui/screens/worldselection/WorldSelectionList.java.patch

@@ -22,7 +22,7 @@
                              }
 -            
 +
-+                            if (this.minecraft.screen instanceof ProgressScreen) // Neo - fix MC-251068
++                            if (this.minecraft.screen instanceof ProgressScreen || this.minecraft.screen instanceof ConfirmScreen) // Neo - fix MC-251068
                              this.minecraft.setScreen(this.screen);
                          },
                          Component.translatable("selectWorld.deleteQuestion"),