New: Native Theme Engine

Co-Authored-By: Zak Saunders <thezak48@users.noreply.github.com>

frontend/src/AddSeries/AddNewSeries/AddNewSeries.css

@@ -6,12 +6,12 @@
 .searchIconContainer {
   width: 58px;
   height: 46px;
-  border: 1px solid $inputBorderColor;
+  border: 1px solid var(--inputBorderColor);
   border-right: none;
   border-radius: 4px;
   border-top-right-radius: 0;
   border-bottom-right-radius: 0;
-  background-color: #edf1f2;
+  background-color: var(--searchIconContainerBackgroundColor);
   text-align: center;
   line-height: 46px;
 }
@@ -25,7 +25,7 @@
 }
 
 .clearLookupButton {
-  border: 1px solid $inputBorderColor;
+  border: 1px solid var(--inputBorderColor);
   border-left: none;
   border-top-right-radius: 4px;
   border-bottom-right-radius: 4px;

frontend/src/AddSeries/AddNewSeries/AddNewSeriesModalContent.css

@@ -4,7 +4,7 @@
 
 .year {
   margin-left: 5px;
-  color: $disabledColor;
+  color: var(--disabledColor);
 }
 
 .poster {

frontend/src/AddSeries/AddNewSeries/AddNewSeriesSearchResult.css

@@ -9,13 +9,15 @@
 .underlay {
   @add-mixin cover;
 
-  background-color: $white;
+  background-color: var(--addSeriesBackgroundColor);
   transition: background 500ms;
 
   &:hover {
-    background-color: #eaf2ff;
+    background-color: var(--pageBackground);
+    box-shadow: 0 0 12px var(--black);
     color: inherit;
     text-decoration: none;
+    transition: all 200ms ease-in;
   }
 }
 
@@ -54,7 +56,7 @@
 
 .year {
   margin-left: 10px;
-  color: $disabledColor;
+  color: var(--disabledColor);
 }
 
 .icons {
@@ -70,7 +72,7 @@
 
   margin-top: -4px;
   margin-left: auto;
-  color: $textColor;
+  color: var(--textColor);
 }
 
 .tvdbLinkIcon {