Feedback messages from server for ACMG Ratings

[gromdimon]

Is your feature request related to a problem? Please describe.
Currently, authenticated users have the ability to save and load ACMG ratings on the server. However, clicking the corresponding buttons does not return any feedback, making it unclear to the user about the current state of the saved ACMG rating on the server.

Describe the solution you'd like
It would be helpful to have pop-up messages such as "Rating does not exist," "Rating created," and similar, upon clicking these buttons.

Describe alternatives you've considered
Alternatively, we could have a field that constantly displays whether the ACMG rating is saved, created, or updated.

Additional context
For implementation reference, see Vuetify alerts usage: https://vuetifyjs.com/en/components/alerts/#usage