feat: support non-singleton darkmode

quartz/components/Darkmode.tsx

@@ -1,6 +1,4 @@
-// @ts-ignore: this is safe, we don't want to actually make darkmode.inline.ts a module as
-// modules are automatically deferred and we don't want that to happen for critical beforeDOMLoads
-// see: https://v8.dev/features/modules#defer
+// @ts-ignore
 import darkmodeScript from "./scripts/darkmode.inline"
 import styles from "./styles/darkmode.scss"
 import { QuartzComponent, QuartzComponentConstructor, QuartzComponentProps } from "./types"
@@ -9,12 +7,12 @@ import { classNames } from "../util/lang"
 
 const Darkmode: QuartzComponent = ({ displayClass, cfg }: QuartzComponentProps) => {
   return (
-    <button class={classNames(displayClass, "darkmode")} id="darkmode">
+    <button class={classNames(displayClass, "darkmode")}>
       <svg
         xmlns="http://www.w3.org/2000/svg"
         xmlnsXlink="http://www.w3.org/1999/xlink"
         version="1.1"
-        id="dayIcon"
+        class="dayIcon"
         x="0px"
         y="0px"
         viewBox="0 0 35 35"
@@ -29,7 +27,7 @@ const Darkmode: QuartzComponent = ({ displayClass, cfg }: QuartzComponentProps)
         xmlns="http://www.w3.org/2000/svg"
         xmlnsXlink="http://www.w3.org/1999/xlink"
         version="1.1"
-        id="nightIcon"
+        class="nightIcon"
         x="0px"
         y="0px"
         viewBox="0 0 100 100"