Some small fixes

There was a section in the witch tower level that can softlock the player, which is now changed so that wouldn't happen.
Sakura Sanctuary has been renamed to Sakura Sandbox.
Using a checkpoint now heals the player.
The Spider enemy now slide a little longer before they recover.
The silk balls thrown by the spider enemies now slide for a moment if they are thrown by a player.
Damaged shoes will now be lost after a boss fight.
Some changes to a few text boxes.