🪲 (garnet_tool/internal.gleam) Fixed issue at generate glue code.

Fixed an issue where an incorrect path was specified for `from` when generating glue code.

src/garnet_tool/internal.gleam

@@ -1,8 +1,9 @@
 import gleam/string
+import filepath
 
 // Generate glue code.
 pub fn generate_glue(modname: String) -> String {
-  let template =
-    ["import { main } from './", modname, ".js'; main();"]
+  let modname_base = filepath.base_name(modname)
+  ["import { main } from './", modname_base, ".js'; main();"]
     |> string.concat
 }