v3.0.0

Internal refactoring + better notifications and activity

• Migrate from VueJS 2 to VueJS 3
• Migrate from Javascript to Typescript
• Adopt an openapi client generator for the frontend
• Migrate cryptolib test from peeky to vitest
• Add tests for the cli
• Add e2e tests using playwright
• Require successful linter checks and tests for release
• Integrate secret creation, retrieval and expiry with NC activity (and notifications)