fix: revert trailing slash to Buffer

[Johannes-Andersen]

Reverts #898 (#904)

Currenrlt with the added / I am unable to use the project with ESM. Node crashes runtime with this error:

➜  git:(main) ✗ pnpm run build && pnpm run start

> [email protected] build /Users/...
> tsc


> [email protected] start /Users/...
> node dist/index.js

node:internal/modules/run_main:122
    triggerUncaughtException(
    ^

Error [ERR_UNSUPPORTED_DIR_IMPORT]: Directory import '/Users//node_modules/.pnpm/[email protected]_@[email protected][email protected][email protected]/node_modules/buffer/' is not supported resolving ES modules imported from /Users//node_modules/.pnpm/[email protected]_@[email protected][email protected][email protected]/node_modules/nsfwjs/dist/esm/index.js
Did you mean to import "buffer/index.js"?
    at finalizeResolution (node:internal/modules/esm/resolve:251:11)
    at moduleResolve (node:internal/modules/esm/resolve:913:10)
    at defaultResolve (node:internal/modules/esm/resolve:1037:11)
    at ModuleLoader.defaultResolve (node:internal/modules/esm/loader:650:12)
    at #cachedDefaultResolve (node:internal/modules/esm/loader:599:25)
    at ModuleLoader.resolve (node:internal/modules/esm/loader:582:38)
    at ModuleLoader.getModuleJobForImport (node:internal/modules/esm/loader:241:38)
    at ModuleJob._link (node:internal/modules/esm/module_job:132:49) {
  code: 'ERR_UNSUPPORTED_DIR_IMPORT',
  url: 'file:///Users//node_modules/.pnpm/[email protected]_@[email protected][email protected][email protected]/node_modules/buffer/'
}

Node.js v22.11.0

By removing this temp hack for bun, that they now have fixes, it is working again

Until this is merged I just downgraded to "nsfwjs": "4.2.0". Will run outdated version until this is released :D