Improve look of runtime toggle, and general UI enhancements for editor

static/js/mithril/editor.js

@@ -278,8 +278,7 @@ const Editor = {
       m(
         "div",
         {
-          class:
+          class: "flex items-center justify-between pl-2",
-            "flex items-center justify-between p-2 border-b border-gray-200 dark:border-gray-800",
         },
         [
           // Left side: name/version OR add input (shown only if showHeader==true)
@@ -367,8 +366,84 @@ const Editor = {
               ])
             : m("div"), // If header is hidden, left side is empty
 
-          // Right side: always show spinner or execute button
+          // Right side is now empty as controls are moved down
-          m("div", { class: "flex items-center space-x-3" }, [
+          m("div"),
+        ]
+      ),
+
+      /* ─────────────────────────────────────────────────────────────────
+         AI Generation
+         ─────────────────────────────────────────────────────────────────*/
+      m(
+        "div",
+        {
+          class:
+            "flex items-center justify-between p-2 border-b border-gray-200 dark:border-gray-800",
+        },
+        [
+          // Left side: AI Generation
+          m("div", {}, [
+            m(
+              "button",
+              {
+                class: "text-sm text-blue-500 hover:underline",
+                onclick: () =>
+                  (this.showNaturalLanguageQuery =
+                    !this.showNaturalLanguageQuery),
+              },
+              "Generate with AI"
+            ),
+          ]),
+
+          // Right side: Runtime toggle and Execute button
+          m("div", { class: "flex items-center space-x-4" }, [
+            // Runtime Toggle Switch
+            m(
+              "label",
+              {
+                for: "runtime-toggle",
+                class: "inline-flex items-center cursor-pointer",
+              },
+              [
+                m(
+                  "span",
+                  {
+                    class:
+                      "mr-3 text-sm font-medium " +
+                      (this.runtime === "node"
+                        ? "text-green-500"
+                        : "text-gray-400 dark:text-gray-500"),
+                  },
+                  "Node"
+                ),
+                m("div", { class: "relative" }, [
+                  m("input[type=checkbox]", {
+                    id: "runtime-toggle",
+                    class: "sr-only peer",
+                    checked: this.runtime === "deno",
+                    onchange: (e) => {
+                      this.runtime = e.target.checked ? "deno" : "node";
+                    },
+                  }),
+                  m("div", {
+                    class:
+                      "w-11 h-6 bg-gray-200 rounded-full peer peer-focus:ring-4 peer-focus:ring-blue-300 dark:peer-focus:ring-blue-800 dark:bg-gray-700 peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-0.5 after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all dark:border-gray-600 peer-checked:bg-blue-600",
+                  }),
+                ]),
+                m(
+                  "span",
+                  {
+                    class:
+                      "ml-3 text-sm font-medium " +
+                      (this.runtime === "deno"
+                        ? "text-blue-500"
+                        : "text-gray-400 dark:text-gray-500"),
+                  },
+                  "Deno"
+                ),
+              ]
+            ),
+
             this.executeLoading
               ? m("div", {
                   class:
@@ -402,22 +477,12 @@ const Editor = {
         ]
       ),
 
-      /* ─────────────────────────────────────────────────────────────────
+      // AI Generation Text Area (conditionally shown)
-         AI Generation
+      this.showNaturalLanguageQuery &&
-         ─────────────────────────────────────────────────────────────────*/
-      m("div", { class: "p-2 border-b border-gray-200 dark:border-gray-800" }, [
         m(
-          "button",
+          "div",
-          {
+          { class: "p-2 border-b border-gray-200 dark:border-gray-800" },
-            class: "text-sm text-blue-500 hover:underline",
+          [
-            onclick: () =>
-              (this.showNaturalLanguageQuery = !this.showNaturalLanguageQuery),
-          },
-          "Generate with AI"
-        ),
-
-        this.showNaturalLanguageQuery &&
-          m("div", { class: "mt-2" }, [
             m("textarea", {
               class:
                 "w-full p-2 border rounded bg-gray-50 dark:bg-gray-700 dark:border-gray-600",
@@ -442,8 +507,8 @@ const Editor = {
                   })
                 : "Generate"
             ),
-          ]),
+          ]
-      ]),
+        ),
 
       /* ─────────────────────────────────────────────────────────────────
          JS Editor
@@ -520,39 +585,6 @@ const Editor = {
           m("div", { class: "flex flex-col space-y-4" }, [
             // Toggles group
             m("div", { class: "flex flex-wrap gap-6" }, [
-              // Runtime dropdown
-              m("div", { class: "flex flex-col" }, [
-                m(
-                  "label",
-                  {
-                    for: "runtime-select",
-                    class: "mb-2 text-sm font-medium",
-                  },
-                  "Runtime"
-                ),
-                m(
-                  "select",
-                  {
-                    id: "runtime-select",
-                    class:
-                      "bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500",
-                    onchange: (e) => (this.runtime = e.target.value),
-                  },
-                  [
-                    m(
-                      "option",
-                      { value: "node", selected: this.runtime === "node" },
-                      "Node.js"
-                    ),
-                    m(
-                      "option",
-                      { value: "deno", selected: this.runtime === "deno" },
-                      "Deno"
-                    ),
-                  ]
-                ),
-              ]),
-
               // Public/Private toggle
               this.showPublicToggle &&
                 m(