Fix local fonts and change font-face values (#2877)

* Fix local fonts and change font-face values

* Remove eot font files

app/javascript/styles/basics.scss

@@ -1,5 +1,5 @@
 body {
-  font-family: 'Roboto', sans-serif;
+  font-family: 'mastodon-font-sans-serif', sans-serif;
   background: $color1 url('../images/background-photo.jpg');
   background-size: cover;
   background-attachment: fixed;