Remove Keyword Method Issue

https://github.com/mixmaxhq/search-string/blob/c2697f1551df4f32f75990a7f930656d03448522/src/searchString.js#L214

Solution:
`removeKeyword(keywordToRemove, negatedToRemove) {
    this.textSegments = this.textSegments.filter(
      ({ value, negated }) => keywordToRemove !== value || negatedToRemove !== negated
    );
    this.isStringDirty = true;
  }`