Use M3 NoteDialogFragment

Signed-off-by: alperozturk <alper_ozturk@proton.me>

app/src/main/java/com/owncloud/android/ui/dialog/NoteDialogFragment.java

@@ -27,6 +27,7 @@ import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 
+import com.google.android.material.button.MaterialButton;
 import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 import com.nextcloud.client.di.Injectable;
 import com.owncloud.android.R;
@@ -83,8 +84,17 @@ public class NoteDialogFragment extends DialogFragment implements DialogInterfac
 
         AlertDialog alertDialog = (AlertDialog) getDialog();
 
-        viewThemeUtils.platform.colorTextButtons(alertDialog.getButton(AlertDialog.BUTTON_POSITIVE),
-                                                 alertDialog.getButton(AlertDialog.BUTTON_NEUTRAL));
+        if (alertDialog != null) {
+            MaterialButton positiveButton = (MaterialButton) alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
+            if (positiveButton != null) {
+                viewThemeUtils.material.colorMaterialButtonPrimaryTonal(positiveButton);
+            }
+
+            MaterialButton negativeButton = (MaterialButton) alertDialog.getButton(AlertDialog.BUTTON_NEGATIVE);
+            if (negativeButton != null) {
+                viewThemeUtils.material.colorMaterialButtonPrimaryBorderless(negativeButton);
+            }
+        }
     }
 
     @Override
@@ -109,7 +119,7 @@ public class NoteDialogFragment extends DialogFragment implements DialogInterfac
         MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(binding.noteContainer.getContext());
         builder.setView(view)
             .setPositiveButton(R.string.note_confirm, this)
-            .setNeutralButton(R.string.common_cancel, this)
+            .setNegativeButton(R.string.common_cancel, this)
             .setTitle(R.string.send_note);
 
         viewThemeUtils.dialog.colorMaterialAlertDialogBackground(binding.noteContainer.getContext(), builder);