Jumpbar Tweaks (#1305)

* Adjusted the detail drawer to be slightly larger.

* Attempted to shorten the jump bar on smaller screens. Robbie needs to take a look at this.

* Adding plex-like styling to jumpbar

* style fixes

* style fixes

* More fixes *sigh*

* fix height issue

* Fixing jumpbar on mobile

* viewport height fix

* added --primary-color-scrollbar for overflow across the app

Co-authored-by: Robbie Davis <robbie@therobbiedavis.com>

UI/Web/src/theme/themes/dark.scss

@@ -8,6 +8,7 @@
     --bs-body-bg: #343a40;
     --body-text-color: #efefef;
     --btn-icon-filter: invert(1) grayscale(100%) brightness(200%);
+    --primary-color-scrollbar: rgba(74,198,148,0.75);
 
     /* Navbar */
     --navbar-bg-color: black;