Fit Split to Screen (#769)

* Updated readme with new host information and new feature site.

* Implemented basic fit to screen splitting option for manga reader such that the reader will try to fit the whole cover on the screen via scaling it.

Updated a bunch of defaults in the preferences to give a better experience for first installs.

* Refactored the stat scheduling code slightly to clean it up and have better logging.

* Replaced @import with @use to lower css bundling.

* Changed up the defaults for the reading preferences to give a better experience. Fixed a duplicate render on automatic scaling due to emitting a valuechange with automatic scaling changing fit.

Implemented basic form of fit to screen. Still needs some tweaking and optimization.

* Update link to new feature server and update kavita homepage to use www.

* Updated the serverInfo to match backend. Tweaked some of the css for the changelog

* Added publish date for changelog

* First page works except for tablet

* I'm stumped, taking a break

* Hide the arrow for nav events

* Ensure specials in reading lists don't have their extensions visible

* Testing out removing no-connection

* Fixed a bug in infinite scroller where next chapter spacer when clicked would emit for prev chapter load. Fixed an issue where next/prev chapter loaders would execute when they shouldn't.

* Fit Split is working in all cases as of this code. New optimization is still needed.

* Fit to screen is now working well

* Updated the bookmark effect to look much better

* Updated new issue template to inform users to request features on our site.

* Removed an empty migration

UI/Web/src/app/nav-header/nav-header.component.scss

@@ -1,4 +1,4 @@
-@import '~bootstrap/scss/mixins/_breakpoints.scss';
+@import '~bootstrap/scss/mixins/_breakpoints.scss'; // TODO: Use @forwards for this?
 
 $primary-color: white;
 $bg-color: rgb(22, 27, 34);