fix nav sorting (sort files by their stems)

also remove forgotten debug println

src/main.rs

@@ -282,17 +282,18 @@ fn update_garden<P: AsRef<Path>>(
             None
         })
         .collect();
-    files.sort();
-    files.sort_by_key(|p| {
-        println!("{:?}", p);
-        match p.extension() {
-            None => -1,
-            Some(ext) => {
-                if ext == "md" {
-                    0
-                } else {
-                    1
-                }
+    files.sort_by(move |a, b| {
+        let a_sort = a.file_stem().unwrap_or_else(|| a.as_os_str());
+        let b_sort = b.file_stem().unwrap_or_else(|| b.as_os_str());
+        a_sort.cmp(b_sort)
+    });
+    files.sort_by_key(|p| match p.extension() {
+        None => -1,
+        Some(ext) => {
+            if ext == "md" {
+                0
+            } else {
+                1
             }
         }
     });