Breack the formating of the marckdown editor

[cloutierjo]

When using inline jira issue, it break the markdown formatting

[cloutierjo]

Does work with block

[marc0l92]

try to close the HTML block like this:

<JiraIssue key="BEE-1220"></JiraIssue>

[akail]

An even simpler fix is adding a "/" before the ">" so its an autoclosing tag. Is there anyway we can make this the default? Typescript is not in my wheelhouse so having a hard time seeing where to add it.