Clean up code. Reorganize files. Port stuff from other branches. + more

This turns the project into a monorepo using pnpm workspaces,
dramatically simplifying the build process. It also fixes a lot of bugs
and just generally makes the codebase a lot cleaner.

packages/lib/vite.config.ts

@@ -18,7 +18,7 @@ export default defineConfig({
                 preserveModules: false
             }
         },
-        sourcemap: true
+        minify: true
     },
     resolve: {
         alias: {