Resolve "Polishing TIC: Neue Icons 5.3"

app/views/questionnaire/edit.php

app/views/questionnaire/question_types/vote/_answer.php

lib/models/Freetext.php

lib/models/LikertScale.php

lib/models/RangeScale.php

lib/models/Vote.php

public/assets/images/anfasser_24.png

public/assets/images/anfasser_48.png

public/assets/images/grabber_black.svg

public/assets/images/grabber_grey.svg

public/assets/images/grabber_white.svg

public/assets/images/icons/black/likert.svg

public/assets/images/icons/black/question-likert.svg

public/assets/images/icons/black/question-rangescale.svg

public/assets/images/icons/black/question-text.svg

public/assets/images/icons/black/rangescale.svg

public/assets/images/icons/blue/likert.svg

public/assets/images/icons/blue/question-diagram.svg

public/assets/images/icons/blue/question-info.svg

public/assets/images/icons/blue/question-likert.svg