Added some great UX features

Getting ready to launch, but still want to 'finalize' some things before putting the MVP live. One such thing was the 'Dark Mode' that you see everywhere. Today, I've coded it up and it's absolutely awesome. Cannot wait to shave off the rough edges, add some final tweaks, and put this board online already. Besides that, over 10 relevant filters are now available, which might be overkill, but a nice differentiator nonetheless.