INT-4475: Fixing form definition

Fixing copy/paste typo, set form
type for modifiedoutcomedata
INT-4475: Accessibility improvements

* Make "Select outcomes" link tab friendly
* Make "Remove outcome set" link tab friendly and improve focus management
* Make "Remove outcome" link tab friendly and improve focus management
* Make editing of outcomes more keyboard friendly
* Make selection of outcomes more keyboard friendly
INT-4475: Switch to icons to neutral gray
INT-4475: Properly apply no sorting to outcome table