fix(design): switch text style

Author: TanakaLun

design/src/main/res/layout/preference_switch.xml

@@ -32,15 +32,15 @@
                 android:id="@+id/title_view"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:textAppearance="?attr/textAppearanceTitleMedium"
+                android:textAppearance="@style/TextAppearance.MaterialComponents.Body1"
                 android:textColor="?attr/colorOnSurface" />
 
             <TextView
                 android:id="@+id/summary_view"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="@dimen/item_text_margin"
-                android:textAppearance="?attr/textAppearanceBodyMedium"
+                android:textAppearance="@style/TextAppearance.MaterialComponents.Body2"
                 android:textColor="?attr/colorOnSurfaceVariant" />
         </LinearLayout>