Enhance App UI with Interactive Elements

I'm looking for a skilled developer to make tiny modifications to an existing app. will need the candidate to add login page and configure the app based on server feedback.

Summary of the tasks:
- Add blocking login page with username and password.
- In case of successful login, configure the server list on the app based on the json/xml/html file send back by the server.

Please review the app link before bidding : https://github.com/Jigsaw-Code/outline-apps

Ideal skills and experience:
- Proficiency in UI/UX design
- Experience with app development and integrating interactive features
- Strong understanding of user interface improvements and their impact on overall app performance

Please submit a detailed proposal outlining your approach, timeline, and relevant experience.