Add tags back in (#247)

Author: rivalee

app/assets/sass/components/_dark-mode.scss

@@ -16,6 +16,20 @@ $app-dark-mode-link-hover-colour: #ffeb3b;
 $app-dark-mode-link-active-colour: #000;
 $app-dark-mode-link-visited-colour: #d055a5;
 
+// Tags
+$app-tag--red-dark-background: nhsuk-shade(nhsuk-colour("red"), 50%);
+$app-tag--red-dark-border: nhsuk-tint(nhsuk-colour("red"), 80%);
+$app-tag--red-dark-text: nhsuk-tint(nhsuk-colour("red"), 80%);
+$app-tag--green-dark-background: nhsuk-shade(nhsuk-colour("green"), 40%);
+$app-tag--green-dark-border: nhsuk-tint(nhsuk-colour("green"), 80%);
+$app-tag--green-dark-text: nhsuk-tint(nhsuk-colour("green"), 80%);
+$app-tag--orange-dark-background: nhsuk-shade(nhsuk-colour("warm-yellow"), 70%);
+$app-tag--orange-dark-border: nhsuk-tint(nhsuk-colour("warm-yellow"), 50%);
+$app-tag--orange-dark-text: nhsuk-tint(nhsuk-colour("warm-yellow"), 50%);
+$app-tag--blue-dark-background: nhsuk-shade(nhsuk-colour("blue"), 30%);
+$app-tag--blue-dark-border: nhsuk-tint(nhsuk-colour("blue"), 80%);
+$app-tag--blue-dark-text: nhsuk-tint(nhsuk-colour("blue"), 80%);
+
 @mixin app-dark-mode-focused-text {
   background-color: $nhsuk-focus-colour;
   box-shadow: