Migrated TagCard test to react testing library

src/tags/TagCard.tsx

@@ -40,10 +40,16 @@ export const TagCard = (
   return (
     <Card className="tag-card">
       <CardHeader className="tag-card__header">
-        <Button color="link" size="sm" className="tag-card__btn tag-card__btn--last" onClick={toggleDelete}>
+        <Button
+          aria-label="Delete tag"
+          color="link"
+          size="sm"
+          className="tag-card__btn tag-card__btn--last"
+          onClick={toggleDelete}
+        >
           <FontAwesomeIcon icon={deleteIcon} />
         </Button>
-        <Button color="link" size="sm" className="tag-card__btn" onClick={toggleEdit}>
+        <Button aria-label="Edit tag" color="link" size="sm" className="tag-card__btn" onClick={toggleEdit}>
           <FontAwesomeIcon icon={editIcon} />
         </Button>
         <h5

src/tags/helpers/DeleteTagConfirmModal.tsx

@@ -22,9 +22,7 @@ export const DeleteTagConfirmModal = (
 
   return (
     <Modal toggle={toggle} isOpen={isOpen} centered>
-      <ModalHeader toggle={toggle}>
-        <span className="text-danger">Delete tag</span>
-      </ModalHeader>
+      <ModalHeader toggle={toggle} className="text-danger">Delete tag</ModalHeader>
       <ModalBody>
         Are you sure you want to delete tag <b>{tag}</b>?
         {error && (