Replaced anchor by span to prevent accessibility error

src/common/react-tagsinput.scss

@@ -36,7 +36,7 @@
   margin-left: 8px;
 }
 
-.react-tagsinput-tag a::before {
+.react-tagsinput-tag span::before {
   content: "\2715";
   color: #fff;
 }

src/utils/TagsSelector.js

@@ -20,7 +20,7 @@ export default function TagsSelector({ tags, onChange, placeholder, colorGenerat
     return (
       <span key={key} style={{ backgroundColor: colorGenerator.getColorForKey(tag) }} {...other}>
         {getTagDisplayValue(tag)}
-        {!disabled && <a className={classNameRemove} onClick={() => onRemove(key)}> </a>}
+        {!disabled && <span className={classNameRemove} onClick={() => onRemove(key)} />}
       </span>
     )
   };