Disable bundle minification

[patryk-smc]

This PR disables minification of Inertia packages.

Rationale

I wanted to customize Inertia with patch-package for my own purposes, but because it is minified, it makes that way harder.

@sebastiandedeyne said that:

I haven't come across anyone using Inertia without a bundler.

So, I believe that shouldn't cause any side effects. Many npm packages such as Axios or React are not published as minified either.