Use outlined TextInputLayout style in rename flags dialog

Be consistent!

Author: lukstbit

AnkiDroid/src/main/res/layout/edit_flag_item.xml

@@ -55,7 +55,6 @@
         android:layout_height="wrap_content">
 
         <com.google.android.material.textfield.TextInputLayout
-            style="@style/Widget.Material3.TextInputLayout.FilledBox"
             android:id="@+id/flag_name_input_layout"
             android:layout_width="match_parent"
             android:layout_weight="1"