Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: jderochervlk

app/routes.res

@@ -35,7 +35,10 @@ let blogArticleRoutes =
 
 let mdxRoutes =
   mdxRoutes("./routes/MdxRoute.jsx")->Array.filter(r =>
-    !(r.path->Option.map(String.startsWith(_, "blog"))->Option.getOr(false))
+    !(r.path
+      ->Option.map(path => path === "blog" || String.startsWith(path, "blog/"))
+      ->Option.getOr(false)
+    )
   )
 
 let default = [

src/MdxFile.res

@@ -30,7 +30,16 @@ let resolveFilePath = (pathname, ~dir, ~alias) => {
   } else {
     pathname
   }
-  let relativePath = path->String.replace(alias, dir)
+  let relativePath =
+    if path->String.startsWith(alias ++ "/") {
+      let rest = path->String.slice(~start=String.length(alias) + 1, ~end=String.length(path))
+      Node.Path.join2(dir, rest)
+    } else if path->String.startsWith(alias) {
+      let rest = path->String.slice(~start=String.length(alias), ~end=String.length(path))
+      Node.Path.join2(dir, rest)
+    } else {
+      path
+    }
   relativePath ++ ".mdx"
 }