feat: alignment of lemmas about monadic functions on List/Array/Vector
#6883
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kim-em
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List/Array/Vector.List/Array/Vector
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This PR completes the alignment of lemmas about monadic functions on
List/Array/Vector. Amongst other changes, we change the simp normal form fromList.forMtoForM.forM, and correct the definition ofList.flatMapM, which previously was returning results in the incorrect order. There remain many gaps in the verification lemmas for monadic functions; this PR only makes the lemmas uniform acrossList/Array/Vector.