feat: add a couple more item sources

[midgleyc]

Description

Add a couple more item sources I have available at the end of a run.

Autumn leaf also gives +combat but I had spares. Loathing Idol also gives init and +combat, but I had /lots/ of spares.

How Has This Been Tested?

Did a run.

Checklist:

• My code follows the style guidelines of this project.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have based my pull request against the main branch or have a good reason not to.

[Alium58]

Awesome, thanks for adding more. Idol mic buff makes sense. I'm slightly concerned about crunchy leaves since +combat isn't always desirable. Need to ponder more, like would it better to only use the leaf if doEverything is true? Need to look where item provider is called again

[midgleyc]

With a very shiny account, there is more than enough -combat to override one more +combat source.

Areas we don't want +combat but do want +item:

• The Laugh Floor (but provideItem says "do everything" anyway)
• The Hidden Park
• Inside the Palindome
• The Penultimate Fantasy Airship
• The Castle in the Clouds in the Sky (Basement)
• The Castle in the Clouds in the Sky (Ground Floor) (though not as much, only for the boning knife)
• Twin Peak
• The Extreme Slope (assuming +nc actually helps get the snowboarding adventures, not sure)
• Friars locations if you're in low key summer and doing pirates

Seems reasonable to split it out. What should the priority be?