Textarea form feedback-icon position improvement [B4]

[IsaiahvH]

Hi,

Maybe this is unnecessary or unwanted, but I propose the position of any feedback-control icon to be in the top right for any <textarea>s because the vertical center seems a weird position for the icon to be. The center position makes sense for normal fields, but for the textarea when spanning multiple rows, I think the top-right position would be an improvement.

I have created a Fiddle demonstrating this here.

It would require the inclusion of

textarea.form-control-success,
textarea.form-control-warning,
textarea.form-control-danger {
  background-position-y: ($input-height / 4);
}

This is a really minor improvement, but I thought I should try contributing wherever I can.

Kind regards,

Isaiah

[mdo]

Closing for #22762.