fix: Error uploading fallback avatar when name contains characters that need to be escaped (#2387)

* Todo -> Task to match new langauge elsewhere

* fix: Correctly escape characters in Tiley url

* Move encoding to avatars logic, add test

server/utils/avatars.js

@@ -29,6 +29,8 @@ export async function generateAvatarUrl({
     }
   }
 
-  const tileyUrl = `${DEFAULT_AVATAR_HOST}/avatar/${hashedId}/${name[0]}.png`;
+  const tileyUrl = `${DEFAULT_AVATAR_HOST}/avatar/${hashedId}/${encodeURIComponent(
+    name[0]
+  )}.png`;
   return cbUrl && cbResponse && cbResponse.status === 200 ? cbUrl : tileyUrl;
 }