Remove or replace unnecessary BackHandler calls (#4148)

* Remove/replace `BackHandler` calls:

- For `UserProfileView`, remove the redundant `BackHandler` -> `navigateUp()` call.
- For `SetupBiometricView`, remove the `enabled = true` parameter, as this is the default value.

features/lockscreen/impl/src/main/kotlin/io/element/android/features/lockscreen/impl/setup/biometric/SetupBiometricView.kt

@@ -31,7 +31,7 @@ fun SetupBiometricView(
     state: SetupBiometricState,
     modifier: Modifier = Modifier,
 ) {
-    BackHandler(true) {
+    BackHandler {
         state.eventSink(SetupBiometricEvents.UsePin)
     }
     HeaderFooterPage(

features/login/impl/src/main/kotlin/io/element/android/features/login/impl/screens/qrcode/confirmation/QrCodeConfirmationView.kt

@@ -45,9 +45,8 @@ fun QrCodeConfirmationView(
     onCancel: () -> Unit,
     modifier: Modifier = Modifier,
 ) {
-    BackHandler {
-        onCancel()
-    }
+    BackHandler(onBack = onCancel)
+
     val icon = when (step) {
         is QrCodeConfirmationStep.DisplayCheckCode -> CompoundIcons.Computer()
         is QrCodeConfirmationStep.DisplayVerificationCode -> CompoundIcons.LockSolid()

features/login/impl/src/main/kotlin/io/element/android/features/login/impl/screens/qrcode/error/QrCodeErrorView.kt

@@ -45,16 +45,14 @@ fun QrCodeErrorView(
     onRetry: () -> Unit,
     modifier: Modifier = Modifier,
 ) {
-    BackHandler {
-        onRetry()
-    }
+    BackHandler(onBack = onRetry)
     FlowStepPage(
         modifier = modifier,
         iconStyle = BigIcon.Style.AlertSolid,
         title = titleText(errorScreenType, appName),
         subTitle = subtitleText(errorScreenType, appName),
         content = { Content(errorScreenType) },
-        buttons = { Buttons(onRetry) }
+        buttons = { Buttons(onRetry) },
     )
 }
 

features/userprofile/shared/src/main/kotlin/io/element/android/features/userprofile/shared/UserProfileView.kt

@@ -7,7 +7,6 @@
 
 package io.element.android.features.userprofile.shared
 
-import androidx.activity.compose.BackHandler
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.consumeWindowInsets
@@ -51,7 +50,6 @@ fun UserProfileView(
     openAvatarPreview: (username: String, url: String) -> Unit,
     modifier: Modifier = Modifier,
 ) {
-    BackHandler { goBack() }
     Scaffold(
         modifier = modifier,
         topBar = {

features/userprofile/shared/src/test/kotlin/io/element/android/features/userprofile/UserProfileViewTest.kt

@@ -34,7 +34,6 @@ import io.element.android.tests.testutils.ensureCalledOnce
 import io.element.android.tests.testutils.ensureCalledOnceWithParam
 import io.element.android.tests.testutils.ensureCalledOnceWithTwoParams
 import io.element.android.tests.testutils.pressBack
-import io.element.android.tests.testutils.pressBackKey
 import kotlinx.coroutines.test.runTest
 import org.junit.Rule
 import org.junit.Test
@@ -46,16 +45,6 @@ import org.robolectric.annotation.Config
 class UserProfileViewTest {
     @get:Rule val rule = createAndroidComposeRule<ComponentActivity>()
 
-    @Test
-    fun `on back key press - the expected callback is called`() = runTest {
-        ensureCalledOnce { callback ->
-            rule.setUserProfileView(
-                goBack = callback,
-            )
-            rule.pressBackKey()
-        }
-    }
-
     @Test
     fun `on back button click - the expected callback is called`() = runTest {
         ensureCalledOnce { callback ->