Improve Dropdown Behavior in Questionnaire Items

[qaziabubakar-vd]

IMPORTANT: All PRs must be linked to an issue (except for extremely trivial and straightforward changes).

Fixes # https://github.com/google/android-fhir/issues/2228

Description Improved the dropdown behaviour, disabled the search within the field once an option is selected. Once the text is cleared, showed the list of options again in the dropdown

Alternative(s) considered Have you considered any alternatives? And if so, why have you chosen the approach in this PR?

Type Choose one: Bug fix

Screenshots (if applicable)

Checklist

• [x] I have read and acknowledged the Code of conduct.
• [x] I have read the Contributing page.
• [x] I have signed the Google Individual CLA, or I am covered by my company's Corporate CLA.
• [x] I have discussed my proposed solution with code owners in the linked issue(s) and we have agreed upon the general approach.
• [x] I have run ./gradlew spotlessApply and ./gradlew spotlessCheck to check my code follows the style guide of this project.
• [x] I have run ./gradlew check and ./gradlew connectedCheck to test my changes locally.
• [x] I have built and run the demo app(s) to verify my change fixes the issue and/or does not break the demo app(s).

[ellykits]

@qaziabubakar-vd Any updates on this PR? Update the PR with the functionality to reset/clear the selected item.

[qaziabubakar-vd]

@qaziabubakar-vd Any updates on this PR? Update the PR with the functionality to reset/clear the selected item.

I was assigned to another project but I will pick this back soon and add the implementation for resetting/clearing the selected item. Will post an update here and on the ticket.

[jingtang10]

Hey @qaziabubakar-vd any progress here? Thanks!