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/common_spinner_item.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@android:id/text1"
-    style="@style/Theme.Widget.SpinnerItem"
+    style="@style/Widget.Tachiyomi.SpinnerItem"
     android:layout_width="match_parent"
     android:layout_height="?attr/dropdownListPreferredItemHeight"
     android:ellipsize="end"