The translation for "selectWorld.resource_load" is in title case instead of sentence case

Unlike every other message in the world loading screen, the message "Preparing Resources..." starts every word with a capital letter, not just the first one, which introduces an inconsistency.

How to reproduce:

1. Click "Singleplayer."
2. Load any world.
3. Wait for the message "Preparing Resources..." to appear on the screen.

Expected result:

"Preparing resources..."

Observed result:

"Preparing Resources..."