Use Tonal Button for register

app/src/main/java/com/hippo/ehviewer/ui/compose/SignInScreen.kt

@@ -21,10 +21,10 @@ import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Button
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FilledTonalButton
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
@@ -53,7 +53,6 @@ import androidx.compose.ui.text.withStyle
 import androidx.compose.ui.unit.dp
 import androidx.navigation.NavController
 import com.hippo.ehviewer.R
-import com.hippo.ehviewer.Settings
 import com.hippo.ehviewer.UrlOpener
 import com.hippo.ehviewer.client.EhEngine
 import com.hippo.ehviewer.client.EhUrl
@@ -192,7 +191,7 @@ fun SignInScreen(navController: NavController) {
             Spacer(modifier = Modifier.weight(1f))
 
             Row {
-                OutlinedButton(
+                FilledTonalButton(
                     onClick = {
                         UrlOpener.openUrl(
                             requireActivity(context),