1.1.1: Update MediaSingle.php

attrs.width is not an int but float
https://developer.atlassian.com/cloud/jira/platform/apis/document/nodes/mediaSingle/
"attrs.width number Floating point number between 0 and 100"

1.1.0: Update Media.php

Added missing 'alt' attribute to Media node:
https://developer.atlassian.com/cloud/jira/platform/apis/document/nodes/media/