Remove Docker config and fix inline scripts

src/components/DarkModeScript.astro

@@ -0,0 +1,35 @@
+---
+
+---
+
+<script is:inline>
+  /* Color scheme toggle */
+  (() => {
+    var colorScheme = localStorage.getItem("colorScheme");
+    if (colorScheme == null || colorScheme === "auto") {
+      localStorage.setItem("colorScheme", "auto");
+      colorScheme = matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "light";
+    }
+
+    const bodyClassList = document.querySelector("body").classList;
+    if (colorScheme === "dark") {
+      bodyClassList.add("dark");
+    }
+
+    function toggleColorScheme() {
+      if (colorScheme === "dark") {
+        colorScheme = "light";
+        bodyClassList.remove("dark");
+      } else {
+        colorScheme = "dark";
+        bodyClassList.add("dark");
+      }
+      localStorage.setItem("colorScheme", colorScheme);
+    }
+
+    const buttonDarkMode = document.querySelector("#button-dark-mode");
+    if (buttonDarkMode) {
+      buttonDarkMode.addEventListener("click", toggleColorScheme);
+    }
+  })();
+</script>