update ui

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

@@ -1,16 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
     android:padding="16dp">
 
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
-        android:background="@drawable/shape_card_view"
         android:orientation="vertical"
         tools:ignore="UselessParent">
 
@@ -82,4 +81,4 @@
 
     </LinearLayout>
 
-</FrameLayout>
+</LinearLayout>