chore: Show deprecation banner, remove save/store functionality

[fxgst]

• show deprecation banner
• remove save/store

[ggreif]

I was able to deploy locally, but I see:

WARNING!
Candid interface compatibility check failed for canister 'saved'.
You are making a BREAKING change. Other canisters or frontend clients relying on your canister may stop working.

Method putProject is only in the expected type
Do you want to proceed? yes/No
yes

I guess this is intended. But please double-check.

[ggreif]

LGTM! Banner is well visible (ICP Ninja link works). Other stuff still works. When do you intend to deploy this to the frontend?

[fxgst]

I was able to deploy locally, but I see:

WARNING!
Candid interface compatibility check failed for canister 'saved'.
You are making a BREAKING change. Other canisters or frontend clients relying on your canister may stop working.

Method putProject is only in the expected type
Do you want to proceed? yes/No
yes

I guess this is intended. But please double-check.

Yes, this is intended. I'm removing the ability to add a stored/shared project.

[fxgst]

LGTM! Banner is well visible (ICP Ninja link works). Other stuff still works. When do you intend to deploy this to the frontend?

Great. I'd merge it now, and deploy it sometime early next week