Fix back button having wrong tint in Toolbar (#6339)

app/src/main/res/values/styles.xml

@@ -7,6 +7,7 @@
 
     <style name="ThemeOverlay.Tachiyomi.ActionBar" parent="ThemeOverlay.Material3.ActionBar">
         <item name="android:colorControlHighlight">?attr/rippleColorToolbar</item>
+        <item name="android:tint">?attr/colorOnToolbar</item>
     </style>
 
     <style name="Widget.Tachiyomi.ActionMode" parent="Widget.Material3.ActionMode">