Feature/add contact page

# What is this?
Adds a contact page to my blog. 

- [ ] TODO: Write tests
- [ ] TODO: Validation on inputs. 
- [ ] TODO: Honeypot validation on the rails side
- [ ] TODO: Add recent contacts to the dashboard
If you deploy this and then someone submits a contact, anyone on the WWW can send a curl request (or in their browser) to this route and it will unabashedly spew out all of your contacts and their personal contents.

I highly recommend adding some sort of authorization to this method, or removing it altogether if you can't / don't want to do that. Also, if you add functional tests, you can catch stuff like this in your API.