Describe the bug
When the result of initialExpression is a collection instead of a single value, The SDC only renders the first value instead of the whole collection.
For example, while using it for a multiple choice question, it only populate the first element of resulting collection of the expression.

Component
SDC library

To Reproduce

• Apply this patch to main branch. checkbox_not_populated_correctly_.patch

• Open any patient & select edit patient questionnaire.

• Observe the selected options.

Expected behavior
(Mother , sister & son should be selected).

Screenshots

Smartphone (please complete the following information):

• Pixel4a emulator

Additional context
Here it's only selecting the first value: https://github.com/google/android-fhir/blob/f42e80427b34dbe9f14ee2f0b4460c38cee0ef[…]a/com/google/android/fhir/datacapture/mapping/ResourceMapper.kt

Would you like to work on the issue?
Yes, creating a PR for fix.

cc: @jingtang10 , @icrc-jofrancisco