Added trailing slash to Buffer import in index.ts (#898)

* Added trailing slash to Buffer import in index.ts

As recommended by the [Buffer maintainer](https://github.com/feross/buffer?tab=readme-ov-file#usage):

>To require this module explicitly, use require('buffer/') which tells the node.js module lookup algorithm (also used by browserify) to use the npm module named buffer instead of the node.js core module named buffer!

This solves a bug found bundling NSFWJS with Bun.

```
Build failed
1 | import { Buffer } from 'buffer';
             ^
error: No matching export in "node:buffer" for import "Buffer"
    at [path]
```

More information: oven-sh/bun#8683

* Add note about Bun issue

---------

Co-authored-by: Jamon Holmgren <[email protected]>

src/index.ts

@@ -1,5 +1,6 @@
 import * as tf from "@tensorflow/tfjs";
-import { Buffer } from "buffer";
+// Remove the trailing slash below if this Bun issue gets fixed: https://github.com/oven-sh/bun/issues/8683
+import { Buffer } from "buffer/";
 import { NSFW_CLASSES } from "./nsfw_classes";
 
 declare global {