[ExposedDropdownMenu] Adding styles to public.xml

Resolves material-components#1141

PiperOrigin-RevId: 303740794

Author: leticiarossi

lib/java/com/google/android/material/textfield/res-public/values/public.xml

@@ -97,4 +97,8 @@
   <public name="Widget.MaterialComponents.TextInputLayout.FilledBox.Dense" type="style"/>
   <public name="Widget.MaterialComponents.TextInputLayout.OutlinedBox" type="style"/>
   <public name="Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense" type="style"/>
+  <public name="Widget.MaterialComponents.TextInputLayout.FilledBox.ExposedDropdownMenu" type="style"/>
+  <public name="Widget.MaterialComponents.TextInputLayout.FilledBox.Dense.ExposedDropdownMenu" type="style"/>
+  <public name="Widget.MaterialComponents.TextInputLayout.OutlinedBox.ExposedDropdownMenu" type="style"/>
+  <public name="Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense.ExposedDropdownMenu" type="style"/>
 </resources>