Confluence formerly inserted emoticons as img tags like this:
<img class="emoticon emoticon-warning" title="(warning)" src="http://confluence.atlatian.net/s/en_US/7901/4635873c8e185dc5df37b4e2487dfbef570b5e2c/_/images/icons/emoticons/warning.svg" alt="(warning)" border="0" />
Let's convert them to actual emojis.