Rename `list()` functions

[simenandre]

This was originally reported by @braaar to me in IRL.

There is something else called list in the Tripletex API (essentially, a batch get-function). This can be confused with our list() function.

Other alternatives could be find(), get(), getMany(). Other suggestions?

[braaar]

Here are some word pairs that could work together:

One entity	Multiple entities
findOne	find
findOne	findMany
findOne	findAll
get	list
get	getMany
get	getAll

[kasperaamodt]

I like the Prisma way, findUnique and findMany.