feat: add webpush and sadhna tracker

app/(app)/books/va/[chapter]/page.tsx

@@ -6,7 +6,6 @@ import { notFound } from "next/navigation";
 import {
   getVaContent,
   getVaSidebarItems,
-  type VaChapter,
   type VaSidebarItem,
 } from "@/lib/va";
 import { getProseChapter } from "@/lib/api";
@@ -61,8 +60,6 @@ export default async function VaChapterPage({
   const next =
     currentIdx < sidebarItems.length - 1 ? sidebarItems[currentIdx + 1] : null;
 
-  const chapterNum = (content as VaChapter).chapter;
-
   return (
     <div className="min-h-screen bg-background">
       <PageHeader sticky>