(fix) Await for async calculate expressions to resolve at initialisation

[samuelmale]

Requirements

• This PR has a title that briefly describes the work done including the ticket number. If there is a ticket, make sure your PR title includes a conventional commit label. See existing PR titles for inspiration.
• My work conforms to the OpenMRS 3.0 Styleguide and design documentation.
• My work includes tests or is validated by existing tests.

Summary

This fix resolves an issue where initial values from calculateExpressions weren't being persisted. This was mostly because the expressions are promises and the values were being set before the promise is resolved.

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Size Change: 0 B

Total Size: 1.22 MB

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