Dialog

This is my work on the new About tab of the UI.  <a href="https://docs.google.com/drawings/d/1Y7jjzA9VmcNwwB9G8BcJ0WMrRwSbXVoDG5FNPMPKIO4/edit?usp=sharing">Prototype</a>

<b>To Do</b>
- [x] Freeseer description and image
- [x] Buttons
- [ ] Button functionality
- [x] Make image have a clear background (feasibility?)
- [x] Version
- [ ] Translations for button text
- [ ] Nice commits
- [ ] Nice commit message