The theme option will now be saved to a cookie

src/script/cookie.ts

@@ -0,0 +1,22 @@
+// The magic cookie system is so stupid
+
+export function setCookie(cname: string, cvalue: string) {
+	document.cookie = cname + "=" + cvalue + ";";
+}
+
+// Credit: https://www.w3schools.com/js/js_cookies.asp
+export function getCookie(cname: string): string {
+	let name = cname + "=";
+	let decodedCookie = decodeURIComponent(document.cookie);
+	let ca = decodedCookie.split(";");
+	for (let i = 0; i < ca.length; i++) {
+		let c = ca[i];
+		while (c.charAt(0) == " ") {
+			c = c.substring(1);
+		}
+		if (c.indexOf(name) == 0) {
+			return c.substring(name.length, c.length);
+		}
+	}
+	return "";
+}