buffer package missing(?) as dependency

[Patrick-Clausen]

Hi,

It seems that the built index.cjs and index.mjs files available on NPM depend on the "buffer" package:
line 12907 of index.mjs:

The buffer package is not declared as a dependency in package.json. Its a very commonly used dependency, so up until recently, we had it available through other dependencies, as I imagine many others have, but we don't any longer, leading to build errors when attempting to bundle for browsers:

It's very easy to work-around - just add a dependency to buffer yourself - but it would be nice to have it declared in package.json of docx.js, so it just works :-)

I'll happily submit a PR if you agree with the suggestion.

[sebagallo]

Doesn't make sense to import the 'buffer' library for Browser usage, as there's 'atob' to do base64 ops. In our current Angular 20 project we made a quick patch to remove the else condition and throw instead.