Removed cols property from textarea component

[marcusmoore]

Following up on a comment in #16075, this PR simply removes cols from the props on the textarea component. It doesn't actually change anything visually since bootstrap takes over styling so why imply it is supported?

[what-the-diff]

PR Summary

• Removal of 'cols' Attribute in Textarea Component
  The attribute that predetermined the breadth of the textarea, 'cols', has been removed. This gives more flexibility in adjusting the size of the textarea to fit different layouts and designs.

• No Default 'cols' Value
  In addition, the PR includes the removal of a predefined default 'cols' value, which was previously set at 50. This further increases design flexibility. Now, the width of the textarea is no longer limited to a specific value by default.