FlowStepPage: make onBackClicked nullable and remove canGoBack.

features/securebackup/impl/src/main/kotlin/io/element/android/features/securebackup/impl/disable/SecureBackupDisableView.kt

@@ -56,7 +56,6 @@ fun SecureBackupDisableView(
     }
     FlowStepPage(
         modifier = modifier,
-        canGoBack = true,
         onBackClicked = onBackClicked,
         title = stringResource(id = R.string.screen_key_backup_disable_title),
         subTitle = stringResource(id = R.string.screen_key_backup_disable_description),

features/securebackup/impl/src/main/kotlin/io/element/android/features/securebackup/impl/enable/SecureBackupEnableView.kt

@@ -46,7 +46,6 @@ fun SecureBackupEnableView(
     }
     FlowStepPage(
         modifier = modifier,
-        canGoBack = true,
         onBackClicked = onBackClicked,
         title = stringResource(id = R.string.screen_chat_backup_key_backup_action_enable),
         iconResourceId = CommonDrawables.ic_key,

features/securebackup/impl/src/main/kotlin/io/element/android/features/securebackup/impl/enter/SecureBackupEnterRecoveryKeyView.kt

@@ -50,7 +50,6 @@ fun SecureBackupEnterRecoveryKeyView(
 
     FlowStepPage(
         modifier = modifier,
-        canGoBack = true,
         onBackClicked = onBackClicked,
         iconResourceId = CommonDrawables.ic_key,
         title = stringResource(id = R.string.screen_recovery_key_confirm_title),

features/securebackup/impl/src/main/kotlin/io/element/android/features/securebackup/impl/setup/SecureBackupSetupView.kt

@@ -48,8 +48,7 @@ fun SecureBackupSetupView(
 ) {
     FlowStepPage(
         modifier = modifier,
-        canGoBack = state.canGoBack(),
-        onBackClicked = onBackClicked,
+        onBackClicked = onBackClicked.takeIf { state.canGoBack() },
         title = title(state),
         subTitle = subtitle(state),
         iconResourceId = CommonDrawables.ic_key,