This commit introduces the Nostr Development Kit (NDK) to enhance the Nostr client functionality. Key changes include:
- Added `NDKPrivateKeySigner` for improved authentication methods in `LoginModal.svelte` and `App.svelte`.
- Refactored the Nostr client to utilize NDK for connection and event fetching, streamlining the connection process and event handling.
- Updated `go.mod` and `package.json` to include `@nostr-dev-kit/ndk` as a dependency.
- Created a new `package-lock.json` to reflect the updated dependency tree.
These changes improve the overall architecture and maintainability of the Nostr client.
This commit enhances the event deletion process by introducing conditional publishing to external relays based on user roles and ownership. It also adds a new method in the NostrClient class to connect to a single relay, improving the flexibility of relay management. The version is bumped to v0.12.3 to reflect these changes.
