privacy: use invidious when youtu.be link is there

mastaface.py

@@ -125,9 +125,9 @@ for bridge in config['bridges']:
             is_main_toot = True
             for toot_text in toots_text:
                 if post['link'] and is_main_toot and (toot_text.find(post['link']) == -1):
-                    toot = toot_text + '\n\n' + post['link']
+                    toot = toot_text + '\n\n' + post['link'].replace('https://youtu.be/','https://invidious.ggc-project.de/')
                 else:
-                    toot = toot_text
+                    toot = toot_text.replace('https://youtu.be/','https://invidious.ggc-project.de/')
                 if is_main_toot:
                     if post['image']:
                         statuses.append(mastodon.status_post(toot, media_ids=media))