Why not use TextDecoder in browser?

[ChALkeR]

These lines apparently set TEXT_ENCODING_AVAILABLE to false in browsers, as process is not defined:

msgpack-javascript/src/utils/utf8.ts

Lines 1 to 5 in e218974

	const TEXT_ENCODING_AVAILABLE =
	typeof process !== "undefined" &&
	process.env.TEXT_ENCODING !== "never" &&
	typeof TextEncoder !== "undefined" &&
	typeof TextDecoder !== "undefined";

Is that intended? If yes, why?

Refs: #33.

[gfx]

Thanks. It was not intended and I've fixed it in v2.4.1.