v0.4.0

Three changes of note in this release:

• Dependencies updated, most importantly including an update to Twilight 0.14.x, which should fix some issues with unknown Discord events generating really spammy error output.
• #33 resolved: the filter that failed is now included in the /chrysanthemum-test output.
• Command handling redone yet again. Should be more robust in general, and will also clean up old commands if and when the time comes to move one around.