[BUG] Unexpected alpha change on hex value input

[coremyslo]

Typing specific inputs in the color picker results in unexpected outputs with alpha values applied

Steps to Reproduce:

1. Type accc
   • Observed: Changes to accccc with alpha 80%.
2. Type 0aaa
   • Observed: Changes to 00aaaa with alpha 67%.

Reproducible here:
https://aesoper101.github.io/vue3-colorpicker/?path=/story/example-colorpicker--chrome&args=disableAlpha:!true