add browser extension to valid hooks, fix empty desc

tubearchivist/web/src/webhook_base.py

@@ -33,6 +33,11 @@ class WebhookBase:
             ],
             "discord_unstable_hook": environ.get("DOCKER_UNSTABLE_HOOK_URL"),
             "discord_release_hook": environ.get("GITHUB_RELEASE_HOOK_URL"),
+        },
+        "browser-extension": {
+            "gh_user": "tubearchivist",
+            "gh_repo": "browser-extension",
+            "discord_release_hook": environ.get("GITHUB_RELEASE_HOOK_URL"),
         }
     }
     ROADMAP_HOOK_URL = environ.get("ROADMAP_HOOK_URL")

tubearchivist/web/src/webhook_github.py

@@ -253,6 +253,9 @@ class CommentNotification:
         if self.data["action"] == "closed":
             return False
 
+        if not html:
+            return "No description provided."
+
         text = BeautifulSoup(html, features="html.parser").text
 
         if len(text) >= 500: