* Merge AMOLED and regular dark themes
This allows all variants of dark themes to use black backgrounds as a
separate preference.
* Merge light and dark themes
* Fix ReaderSeekBar color on Dark Blue theme
* Color fixes
* Fix Dark Blue bars ripple
* Simplify night mode check
* 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>
