Fix RSS URLs treated as internal (#3156)

* Fix RSS URLs treated as internal

* Add utils to patch relative RSS external links

* modify router to support multiple paths

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Co-authored-by: Hailey <me@haileyok.com>

src/routes.ts

@@ -12,7 +12,7 @@ export const router = new Router({
   ModerationModlists: '/moderation/modlists',
   ModerationMutedAccounts: '/moderation/muted-accounts',
   ModerationBlockedAccounts: '/moderation/blocked-accounts',
-  Profile: '/profile/:name',
+  Profile: ['/profile/:name', '/profile/:name/rss'],
   ProfileFollowers: '/profile/:name/followers',
   ProfileFollows: '/profile/:name/follows',
   ProfileList: '/profile/:name/lists/:rkey',