`filename_from_path` Only Strips File Extension From Path

(assuming it has one)

https://github.com/odin-lang/Odin/blob/56aab55d8250ee8191583d6b5e97eace89cfbef7/src/string.cpp#L491-L507

	gb_internal String filename_from_path(String s) {
	isize i = string_extension_position(s);
	if (i >= 0) {
	s = substring(s, 0, i);
	return s;
	}
	if (i > 0) {
	isize j = 0;
	for (j = s.len-1; j >= 0; j--) {
	if (is_separator(s[j])) {
	break;
	}
	}
	return substring(s, j+1, s.len);
	}
	return make_string(nullptr, 0);
	}

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