Added 2 new themes: violet & gold (#212)

* Added 2 new themes: violet & gold

* Increased contrast in Violet theme

* Changed accent colour on violet theme

templates/settings.html

@@ -15,7 +15,7 @@
 			<div id="theme">
 				<label for="theme">Theme:</label>
 				<select name="theme"> 
-					{% call utils::options(prefs.theme, ["system", "light", "dark", "black", "dracula", "nord", "laserwave"], "system") %}
+					{% call utils::options(prefs.theme, ["system", "light", "dark", "black", "dracula", "nord", "laserwave", "violet", "gold"], "system") %}
 				</select>
 			</div>
 			<p>Interface</p>