Giant code reorganization (#690)

Code restructure

plug-api/syscalls/code_widget.ts

@@ -0,0 +1,15 @@
+import type { CodeWidgetContent } from "$type/types.ts";
+import { syscall } from "../syscall.ts";
+
+export function render(
+  lang: string,
+  body: string,
+  pageName: string,
+): Promise<CodeWidgetContent | null> {
+  return syscall("codeWidget.render", lang, body, pageName);
+}
+
+// Refresh all code widgets on the page that support it
+export function refreshAll() {
+  return syscall("codeWidget.refreshAll");
+}