fix css for html views

web.py

@@ -66,11 +66,12 @@ class ActivityDiffHtml:
 
 class JS:
     def on_get(self, req: falcon.request.Request, resp: falcon.response.Response, file: str) -> None:
-        resp.content_type = falcon.MEDIA_JS
         if file == 'json2htmltable.js':
+            resp.content_type = falcon.MEDIA_JS
             resp.text = utils.html_table_generator
 
         elif file == 'table_styles.css':
+            resp.content_type = 'text/css'
             resp.text = utils.activity_table_html_styles
 
         else: