Tidy mixture of function parameter types

[RobH123]

Some functions use parameters, e.g., functionA(username, languageCode, ...);

Others (mostly functions written by other uW programmers) pass objects, e.g., functionB({ username: adjustedUsername, languageCode, ...});

Having both forms is both confusing and error-prone.

Find out:

1. Which is the most efficient form? What is the cost of the alternate form?
2. Which is the preferred form? What do other uW codebases use?

Then decide which is best and make this code more consistent.

[mandolyte]

Note to self @mandolyte ; consider above...