Performance: <BasicTranscript> should use useMemoArrayMap() to memoize the result

Feature Request

Note: the performance gain here is minimal. Reducing a O(n) of object creation/destruction on every incoming/outgoing activity.

Excerpt from the code.

// TODO: [P2] We can also use useMemoArrayMap() for this function.
//       useMemoArrayMap(array, mapper) will need to be modified to useMemoArrayMap(array, mapper, getDeps).
//       This is because the deps for every item is not itself anymore. It will include activityElements[index + 1].
const activityElementsWithMetadata = useMemo(
)

Implementation

• Modify useMemoArrayMap(array, mapper)
  • Change it to useMemoArrayMap(array, mapper, getDeps = (item, index) => [item])
  • getDeps allow the mapper to cache the per-item deps
  • Modify prevResult = prevMapperCalls.find() to look for an array of deps, instead of value

[Enhancement]

Start by locating useMemoArrayMap and the implementation, then read how the current activityElementsWithMetadata memoization works. Update the utility to accept per-item dependencies and apply it to the transcript mapping; done means the requested memoization path is used without changing the resulting metadata.