feat(A11yFeedback): Pixel overlay to expose the feedback bucket ID

This change introduces a feature provider for Pixel overlays, allowing
customization of the feedback bucket ID on Android.

Bug: 393980229
Test: Manual testing for Pixel and non-Pixel overlay in real device
Test: atest AccessibilitySettingsTest
            FeedbackManagerTest
Flag: com.android.server.accessibility.enable_low_vision_generic_feedback
Change-Id: Ieeb1dba4de5c13a275e66781621cbfcca7219a5e

src/com/android/settings/accessibility/AccessibilityFeedbackFeatureProviderImpl.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2025 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settings.accessibility;
+
+import android.content.ComponentName;
+
+import androidx.annotation.Nullable;
+
+/** Default implementation of {@link AccessibilityFeedbackFeatureProvider}. */
+public class AccessibilityFeedbackFeatureProviderImpl implements
+        AccessibilityFeedbackFeatureProvider{
+
+    @Override
+    @Nullable
+    public String getCategory(@Nullable ComponentName componentName) {
+        return "";
+    }
+}