fix: add trailing slash to local serving

quartz/bootstrap-cli.mjs

@@ -387,6 +387,7 @@ See the [documentation](https://quartz.jzhao.xyz) for how to get started.
         await serveHandler(req, res, {
           public: argv.output,
           directoryListing: false,
+          trailingSlash: true,
         })
         const status = res.statusCode
         const statusString =

quartz/path.ts

@@ -1,4 +1,5 @@
 import { slug } from "github-slugger"
+// this file must be isomorphic so it can't use node libs (e.g. path)
 
 // Quartz Paths
 // Things in boxes are not actual types but rather sources which these types can be acquired from