message: Adds alt="" to masthead icons since buttons already have aria-label="..."
  Bug
diff: @@ -564,7 +564,7 @@ class MastheadToolbarContents_ extends React.Component {
  isRead
  count={notificationAlerts?.data?.length || 0}
  >
  - <BellIcon />
  + <BellIcon alt="" />
  </NotificationBadge>
  </PageHeaderToolsItem>
  )}
  @@ -575,7 +575,7 @@ class MastheadToolbarContents_ extends React.Component {
  className="pf-c-button pf-m-plain"
  aria-label="Import YAML"
  >
  - <PlusCircleIcon className="co-masthead-icon" />
  + <PlusCircleIcon className="co-masthead-icon" alt="" />
  </Link>
  </Tooltip>
  </PageHeaderToolsItem>
  @@ -597,7 +597,7 @@ class MastheadToolbarContents_ extends React.Component {
  ),
  )}
  position="right"
  - toggleIcon={<QuestionCircleIcon />}
  + toggleIcon={<QuestionCircleIcon alt="" />}
  isGrouped
  />
  </PageHeaderToolsItem>
  