chore: use "kB" everywhere with the correct definition

[naruaway]

Recently I got confused with inconsistent usages across tools around "Kilobyte".
And then I just found Vite chose to use "kB = 1000 bytes" in #10982.

This PR is just to fix small remaining inconsistencies.

I searched these using ripgrep by running rg --hidden -i -w kb and rg --hidden -i -w kib

Changes in this PR should not affect the behavior of Vite itself

[stackblitz]

Run & review this pull request in StackBlitz Codeflow.

[naruaway]

Oh this change triggered the limit 😅

packages/vite build: [!] (plugin bundle-limit) Error: Bundle size exceeded 120 kB, current size is 121.86kb.
packages/vite build:     at Object.generateBundle (file:///home/runner/work/vite/vite/packages/vite/rollup.config-1691641081524.mjs:360:23)
packages/vite build:     at /home/runner/work/vite/vite/node_modules/.pnpm/rollup@3.28.0/node_modules/rollup/dist/shared/rollup.js:1909:40
packages/vite build:  ELIFECYCLE  Command failed with exit code 1.
packages/vite build: ERROR: "build-bundle" exited with 1.
packages/vite build: Failed

[naruaway]

The previous limit was actually 120 kiB, which is 122880 bytes = 122.88 kB

I think 123 kB seems reasonable approximation assuming we do not want to put weird number 122.88 in the config. Now I did the change in 3b4904f

[sapphi-red]

It seems we are using 4KiB as a default value for build.assetsInlineLimit.

vite/packages/vite/src/node/build.ts

Lines 108 to 113 in 2c1a45c

	/**
	* Static asset files smaller than this number (in bytes) will be inlined as
	* base64 strings. Default limit is `4096` (4kb). Set to `0` to disable.
	* @default 4096
	*/
	assetsInlineLimit?: number

I guess it's better to keep the value as-is to avoid the breaking change, and correct the 4kB comment to 4KiB.

[naruaway]

@sapphi-red, thanks, I missed that pattern. I now ran rg --hidden -i '\dkib', rg --hidden -i '\dkb', and rg --hidden -wi kbs to search for more patterns and made them consistent in 848f083 without breaking observable behavior of Vite

[sapphi-red]

Thanks!