[1.20.1] A few small bug fixes

[Gegy]

This PR is a collection of a few small but random fixes to bugs we noticed while playing with Cyclic on a server - I thought it makes more sense to just make one PR than a bunch of tiny ones, but happy to split it up if that is preferred!

Particularly, the last commit addresses an inconsistency with Mattocks in Miners - but I'm not sure how it is supposed to behave by design. If this needs some more thought especially, I can move that out or drop the commit 🙂

Also not sure if the 1.20.1 branch is the right one to PR to - but if not, am happy to rebase it :)

The bugs addressed:

• If a Miner fails to harvest a block (in our case, mining an instanced loot chest from Lootr), it would destroy itself. This seems to have been a mistake in the fallback case when the target fails to be mined, forcing the break on itself rather than the target. Might relate to Miner destroys itself while in a claimed chunk #2367?
• Fluid Collectors when unloaded would lose their size/height settings (unlike Miners)
• Miners when unloaded would lose their current mined progress (unlike Fluid Collectors)
• The client would crash when trying to render a shapedata block preview without both targets set
• Items in cables could be pushed against an extraction cable in the fallback case where they could not travel anywhere else - this could rarely lead to output items ending up back in input slots in an unexpected way
• Mattocks behave inconsistently when used in a Miner block - as the fake player is placed at the corner of the Miner, the distance and whether in the negative/negative quadrant relative to the Miner would affect whether it applies