fix typedoc build warnings

[sripwoud]

yarn run typedoc gives some warnings we can/should address.

[warning] The entrypoint glob ./packages/eddsa-proof did not match any directories containing package.json.
[warning] The entrypoint glob ./packages/groth16 did not match any directories containing package.json.
[info] Converting project at ./packages/baby-jubjub
[warning] You are running with an unsupported TypeScript version! If TypeDoc crashes, this is why. TypeDoc supports 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4
[info] Converting project at ./packages/eddsa-poseidon
[info] Converting project at ./packages/imt
[info] Converting project at ./packages/lazytower
[info] Converting project at ./packages/lean-imt
[info] Converting project at ./packages/logical-expressions
[info] Converting project at ./packages/poseidon-cipher
[info] Converting project at ./packages/poseidon-proof
[info] Converting project at ./packages/smt
[info] Converting project at ./packages/utils
[warning] The signature Buffer.write has an @param with
name "offset", which was not used.
[warning] The signature Buffer.write has an @param with
name "length", which was not used.
[warning] The signature Buffer.reduce has an @param with name "initialValue", which was not used.
[warning] The signature Buffer.reduceRight has an @param with name "initialValue", which was not used.
[info] Merging converted projects
[warning] Failed to resolve link to "IMT" in comment for @zk-kit/lean-imt.LeanIMT.
[info] Documentation generated at ./docs