Rename all services, use scss, cleanup, add sandpaper conversion script

app/corpora/routes.py

@@ -319,7 +319,7 @@ def corpus_file(corpus_id, corpus_file_id):
     form.title.data = corpus_file.title
     return render_template(
         'corpora/corpus_file.html.j2',
-        corpus=corpus,
+        corpus=corpus_file.corpus,
         corpus_file=corpus_file,
         form=form,
         title='Edit corpus file'