feat(build): Use kB in build reporter

[ArnaudBarre]

Related to #10895

cc @Shinigami92

[bluwy]

Wouldn't dividing by 1024 and showing as KiB be more accurate? Dividing by 1000 feels like it decreases the accuracy

[patak-dev]

I think we should move to kB (dividing by 1000) too.

The last PR that changed the unit was:

• chore: KiB instead of kb unit #4493

But Chrome dev tools are using kB across the board: https://developer.chrome.com/blog/new-in-devtools-88/#consistent-kb

DevTools now consistently use kB for displaying file/memory sizes. Previously DevTools mixed kB (1000 bytes) and KiB (1024 bytes). For example, the Network panel previously used "kB" labels but actually performed calculations using KiB, which caused needless confusion.

[benmccann]

For kB, it seems that Ubuntu uses base 10 in all GUI applications (newer) and base 2 in all CLI applications like ls (older).

I feel like it sucks that Chrome and ls don't agree, so there won't be agreement regardless of what we pick.

But if I guess if base 10 is the trend these days we might as well go with it 🤷

[patak-dev]

That is a good point with ls @benmccann. I still think that it would probably be more surprising that the user doesn't see the same numbers in the chrome network tab compared to what Vite reports, no? Hopefully, every tool ends up moving at one point.

[benmccann]

Yeah, I'm still slightly in favor of this PR and hope one day ls will end up moving too