Drop Rollup in favor of esbuild

build/assets.ts

@@ -0,0 +1,5 @@
+export const APP_JS = "app.js";
+export const APP_CSS = "app.css";
+export const ICONS_SVG = "icons.svg";
+export const LOGO_SVG = "logo.svg";
+export const FAVICON_PNG = "favicon.png";