chore(verison) bump ui version to 0.4

[edlerd]

Done

• [List of work items including drive-bys]

Fixes [list issues/bugs if needed]

QA

1. Run the LXD-UI:
   • On the demo server via the link posted by @webteam-app below. This is only available for PRs created by collaborators of the repo. Ask @lorumic or @edlerd for access.
   • With a local copy of this branch, run as described here.
2. Perform the following QA steps:
   • [List the steps to QA the new feature(s) or prove that a bug has been resolved]

Screenshots

[if relevant, include a screenshot or screen capture]