x.json2: incorrect Unicode emojis interpretation

[MCausc78]

Describe the bug

Current encoder interprets Unicode emoji as spaces (giving [" "] as incorrect output)

Reproduction Steps

import x.json2

fn main() {
    assert json2.Any([
        json2.Any('💀')
    ]).json_str().bytes() == '["💀"]'.bytes()
}

Expected Behavior

Successful execution without errors

Current Behavior

test.v:4: FAIL: fn main.main: assert x.json2.Any([x.json2.Any('💀')]).json_str().bytes() == '['💀']'.bytes()
   left value: x.json2.Any([x.json2.Any('💀')]).json_str().bytes() = [91, 34, 32, 34, 93]
  right value: '['💀']'.bytes() = [91, 34, 240, 159, 146, 128, 34, 93]
V panic: Assertion failed...
v hash: c0321c8
C:/Users/mclr/AppData/Local/Temp/v_0/test.12033367665732342971.tmp.c:8391: at _v_panic: Backtrace
C:/Users/mclr/AppData/Local/Temp/v_0/test.12033367665732342971.tmp.c:18701: by main__main
C:/Users/mclr/AppData/Local/Temp/v_0/test.12033367665732342971.tmp.c:18812: by wmain
0049f3f8 : by ???
0049f55b : by ???
7ffa3fd753e0 : by ???

Possible Solution

Hint: Python json encodes it as ["\\ud83d\\udc80"]

Additional Information/Context

Used in discord.v button components

V version

V 0.4.3 ed754cf

Environment details (OS name and version, etc.)

Unrelated

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