ECHOES-1308 Remove the thin collapsed sidebar and implement the new undocked interaction model#716

david-cho-lerat-sonarsource wants to merge 4 commits into

david/ECHOES-1408-optional-icon-for-navigation-accordion-itemsSonarSource/echoes-react:david/ECHOES-1408-optional-icon-for-navigation-accordion-itemsfrom

david/ECHOES-1308-remove-thin-collapsed-sidebarSonarSource/echoes-react:david/ECHOES-1308-remove-thin-collapsed-sidebarCopy head branch name to clipboard