Squashed and stretched emojis that aren't square images

Observed behaviour

the emoji became stretched to "fill" the emoji formmart

Reproduction steps

Use an command that i created to create an emoji via image link, !addemoji <name> <link> (attachted code)
Use an PNG image wihout background in an retangular ratio aspect
After using the command, send the emoji and will look stretched

Build information

Version 1.0.0, Beta 28, Channel Beta, Build 2100, Android 16 (arm64), Device samsung SM-S931B, Locale pt-BR, Push unifiedpush, Flutter 3.44.4, Dart 3.12.2

Platform

Android

Details

Expected behaviour The emoji should look in the original ratio aspect even if it become smaller