fix square corner in play/pause animation in cover Art (#8589)

### Description

Fixes a visual bug where the touch feedback (ripple animation) on the
cover art during play/pause actions extends beyond the image's rounded
corners, resulting in sharp, square edges bleeding over the layout.

closes #8538

### Checklist
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app/src/main/res/drawable/cover_fragment_ripple_border.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+        android:color="?attr/colorControlHighlight">
+    <item android:id="@android:id/mask">
+        <shape android:shape="rectangle">
+            <solid android:color="#FFFFFF" />
+            <corners android:radius="16dp"/>
+        </shape>
+    </item>
+</ripple>

app/src/main/res/layout/cover_fragment.xml

@@ -22,7 +22,7 @@
             android:layout_height="0dp"
             android:layout_gravity="center"
             android:layout_marginHorizontal="32dp"
-            android:foreground="?attr/selectableItemBackgroundBorderless"
+            android:foreground="@drawable/cover_fragment_ripple_border"
             android:importantForAccessibility="no"
             android:scaleType="fitCenter"
             squareImageView:direction="minimum"