More themes cleanup (#5410)

* More themes cleanup

* Tweak some things

* Fix 'Clear History' icon

* Split out ripple colored to its own drawable

* Tidy up things

* Unify background dim amount

* Use primaryColor for Account login button

* More colored ripples

* use colorOnPrimary for selected comfortable library item title

Co-authored-by: Soitora <simon.mattila@protonmail.com>

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

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="42dp"
     android:layout_height="42dp"
-    android:background="@drawable/ripple_regular"
+    android:background="?attr/selectableItemBackgroundBorderless"
     android:padding="8dp">
 
     <ImageView