Ore UI: Empty top whitespace remains on Advanced/Cheats tabs after disabling Hardcore

Brief description In the new Ore "Create New World" UI, after enabling and then disabling Hardcore mode without closing the create world screen, the Advanced and Cheats tabs retain empty blank space at the top, left over from the blue Hardcore warning banner. This is a purely visual bug, all world settings work normally.

Steps to reproduce

1. Open the Create New World screen (Ore UI).

2. Go to General tab and turn Hardcore mode ON.

3. Switch to Advanced tab and Cheats tab. The blue warning banner appears and takes up space at the top.

4. Return to General tab and disable Hardcore mode.

5. Navigate back to Advanced or Cheats tab.

Expected result When Hardcore is disabled, the banner container should be removed. Tab content should stay tight against the top with no empty gap.

Actual result The blue banner disappears, but its container height remains. There is unused blank whitespace at the top of Advanced / Cheats tabs. The blank gap disappears only after fully closing the Create New World popup and reopening it.

Additional info

• Changing game language or resource packs has no effect on this bug.

• No impact on gameplay or world generation, only visual layout issue.