Incorrect copy for denied permission (oxen-io#1636)

Co-authored-by: fanchao <git@fanchao.dev>

app/src/main/java/org/thoughtcrime/securesms/media/MediaOverviewScreen.kt

@@ -17,7 +17,6 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.pager.HorizontalPager
 import androidx.compose.foundation.pager.rememberPagerState
-import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.BasicAlertDialog
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -29,7 +28,6 @@ import androidx.compose.material3.rememberTopAppBarState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
-import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
@@ -40,7 +38,6 @@ import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalHapticFeedback
-import androidx.compose.ui.unit.dp
 import network.loki.messenger.R
 import org.thoughtcrime.securesms.ui.AlertDialog
 import org.thoughtcrime.securesms.ui.DialogButtonModel
@@ -71,7 +68,7 @@ fun MediaOverviewScreen(
             } else {
                 Toast.makeText(
                     context,
-                    R.string.AttachmentManager_signal_requires_the_external_storage_permission_in_order_to_attach_photos_videos_or_audio,
+                    R.string.MediaPreviewActivity_unable_to_write_to_external_storage_without_permission,
                     Toast.LENGTH_LONG
                 ).show()
             }