! Finalizing video fetch endpoint

With this the backend is officially at an MVP stage and now requires polishing
Proper data streaming for larger clips is basically required
for a really good backend(especially async streaming)
and some better css for the video player

api/static/css/style.css

@@ -38,6 +38,9 @@ a {
 	background: #191818;
 	border-radius: 1em;
 }
+video {
+	max-width: 100%;
+}
 
 .pure-form {
     text-align: center;