chores/update some TODO

app/activitypub.py

@@ -59,11 +59,11 @@ ME = {
         "sharedInbox": config.BASE_URL
         + "/inbox",
     },
-    "url": config.ID + "/",  # XXX: the path is important for Mastodon compat
+    "url": config.ID + "/",  # the path is important for Mastodon compat
     "manuallyApprovesFollowers": config.CONFIG.manually_approves_followers,
-    "attachment": [], # TODO
+    "attachment": [], # TODO media support
     "icon": {
-        "mediaType": "image/png", # TODO
+        "mediaType": "image/png", # TODO media support
         "type": "Image",
         "url": config.CONFIG.icon_url,
     },
@@ -72,7 +72,7 @@ ME = {
         "owner": config.ID,
         "publicKeyPem": get_pubkey_as_pem(config.KEY_PATH),
     },
-    "tag": [] # TODO
+    "tag": [] # TODO tag support
 }
 
 class VisibilityEnum(str, enum.Enum):