fix: textarea selection bug in field options

[sapayth]

While trying to select the text area type (Normal, Rich text area, Teeny rich text area) through radio buttons for the Post Content & Post Description fields, all the buttons get selected if the selection is changed.

Testing instruction: Please test textarea and post_content fields in all the post form templates

Issue Link

[Rat01047]

Issue-1: Delete pop-up not displaying error image correctly

Scenario: WPUF > Post Forms > Create New > Add any Field > Click Delete icon > Pop-up > Image not displaying correctly

Screenshot given for reference:

[Rat01047]

Issue-2: Post Excerpt still has the issue

Scenario: New Form > Add Post Excerpt > Edit > Advanced options > Issue still exists for Textarea Selections

Screenshot given for reference: https://www.awesomescreenshot.com/image/32344202?key=b44c4305762df22969f715c3d981b3e5

[Rat01047]

Issue-3: For existing FORMS created > Issue still exists for Textarea Selections

Scenario: Existing FORMS > Edit > Click edit for Post Content or Post Excerpt > Issue still exists