Preserve asset paths order when deduping

[brenogazzola]

Preserve the order of asset paths when deduplicating.

This closes #74, but it's only treating the symptoms, without actually fixing the cause (duplicate logical paths).

@miharekar I've tested this in your project, and it seems to work, but do you mind take another look to ensure I did not miss something?

[miharekar]

Yup, seems to do the trick! Thank you! 🙏

[strobilomyces]

This also fixed an issue I was having with Stimulus controllers in development (I'm using esbuild-rails for globbing, but I also tried registering controllers singly). The entrypoint with the controllers would be correct in my builds folder, but for some reason the contents of that entrypoint were being replaced by stimulus.js when served. (And yes, I triple-checked that nothing was being served from public/assets.)

Prior to the error, I was using propshaft 0.6.1 and everything was running smoothly.

In staging/production, where my assets are precompiled, I never had any issues.

Anyway, thanks :)