Sync webb-writer with legacy registry.

Author: pacchettibotti

new-packages.json

@@ -383,6 +383,7 @@
   "purescript-webb-monad": "https://github.com/mitchellandwebb/webb-monad.git",
   "purescript-webb-refer": "https://github.com/mitchellandwebb/webb-refer.git",
   "purescript-webb-test": "https://github.com/mitchellandwebb/webb-test.git",
+  "purescript-webb-writer": "https://github.com/mitchellandwebb/webb-writer.git",
   "purescript-webextension-polyfill": "https://github.com/rowtype-yoga/purescript-webextension-polyfill.git",
   "purescript-webgpu": "https://github.com/purescript-web/purescript-webgpu.git",
   "purescript-whatwg-html": "https://github.com/ursi/purescript-whatwg-html.git",