Fixed search widget style

app/src/main/java/eu/faircode/email/FragmentMessages.java

@@ -2274,7 +2274,7 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
                         Log.i("Suggestions=" + cursor.getCount());
                         SimpleCursorAdapter adapter = new SimpleCursorAdapter(
                                 getContext(),
-                                android.R.layout.simple_list_item_1,
+                                R.layout.search_suggestion,
                                 cursor,
                                 new String[]{"suggestion"},
                                 new int[]{android.R.id.text1},

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

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="?android:colorBackground"
+    android:padding="6dp">
+
+    <TextView
+        android:id="@android:id/text1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Text1"
+        android:textAppearance="@style/TextAppearance.AppCompat.Small"
+        android:textColor="?android:attr/textColorSecondary"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>