Fixed demo app crash by appropriately handing ResourceNotFoundException.

[aditya-07]

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

Fixes #[issue number]

** ISSUE Description**
Moving to the Temperature Page during the Survey for a patient is causing the app to crash with the following error:
E FATAL EXCEPTION: main Process: com.google.android.fhir.demo, PID: 6320 com.google.android.fhir.db.ResourceNotFoundException: Resource not found with type Binary and id android-fhir-thermometer-image! at com.google.android.fhir.db.impl.DatabaseImpl$select$2.invokeSuspend(DatabaseImpl.kt:160) at com.google.android.fhir.db.impl.DatabaseImpl$select$2.invoke(Unknown Source:8) at com.google.android.fhir.db.impl.DatabaseImpl$select$2.invoke(Unknown Source:2) at androidx.room.RoomDatabaseKt$withTransaction$transactionBlock$1.invokeSuspend(RoomDatabaseExt.kt:56) at androidx.room.RoomDatabaseKt$withTransaction$transactionBlock$1.invoke(Unknown Source:8) at androidx.room.RoomDatabaseKt$withTransaction$transactionBlock$1.invoke(Unknown Source:4) at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:78) at kotlinx.coroutines.BuildersKt__Builders_commonKt.withContext(Builders.common.kt:167) at kotlinx.coroutines.BuildersKt.withContext(Unknown Source:1) at androidx.room.RoomDatabaseKt$startTransactionCoroutine$2$1$1.invokeSuspend(RoomDatabaseExt.kt:97) at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33) at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:108) at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:280) at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:85) at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59) at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source:1) at androidx.room.RoomDatabaseKt$startTransactionCoroutine$2$1.run(RoomDatabaseExt.kt:93) at androidx.room.TransactionExecutor.execute$lambda$1$lambda$0(TransactionExecutor.kt:36) at androidx.room.TransactionExecutor.$r8$lambda$AympDHYBb78s7_N_9gRsXF0sHiw(Unknown Source:0) at androidx.room.TransactionExecutor$$ExternalSyntheticLambda0.run(Unknown Source:4) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) at java.lang.Thread.run(Thread.java:923) Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException:

** Description**

Wrapped the calls to FhirEngine search in try/catch block to handle ResourceNotFoundException appropriately.

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

• I have read and acknowledged the Code of conduct.
• I have read the Contributing page.
• I have signed the Google Individual CLA, or I am covered by my company's Corporate CLA.
• I have discussed my proposed solution with code owners in the linked issue(s) and we have agreed upon the general approach.
• I have run ./gradlew spotlessApply and ./gradlew spotlessCheck to check my code follows the style guide of this project.
• I have run ./gradlew check and ./gradlew connectedCheck to test my changes locally.
• 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).

[santosh-pingle]

@aditya-07
Can you please link the issue?