Update dummy application to use updated API for the frost-link compon…

[jscharf]

This project uses semver, please check the scope of this pr:

• [x] #none# - documentation fixes and/or test additions
• [ ] #patch# - backwards-compatible bug fix
• [ ] #minor# - adding functionality in a backwards-compatible manner
• [ ] #major# - incompatible API change

Resolves #150

CHANGELOG

• Updated dummy application to use updated API for the frost-link component
• Updated dummy application to include a user route to resolve No route named error

[juwara0]

👍