error: add a few more error types

we will need this in the following commits

src/error.rs

@@ -1,21 +1,38 @@
 use nostr_sdk::nips::nip19;
 use std::array::TryFromSliceError;
 use std::fmt;
+use tokio::sync::broadcast::error::RecvError;
 
 #[derive(Debug)]
 pub enum Error {
     Nip19(nip19::Error),
     Http(hyper::http::Error),
     Nostrdb(nostrdb::Error),
+    NostrClient(nostr_sdk::client::Error),
+    Recv(RecvError),
+    NotFound,
+    InvalidNip19,
     SliceErr,
 }
 
+impl From<RecvError> for Error {
+    fn from(err: RecvError) -> Self {
+        Error::Recv(err)
+    }
+}
+
 impl From<TryFromSliceError> for Error {
     fn from(_: TryFromSliceError) -> Self {
         Error::SliceErr
     }
 }
 
+impl From<nostr_sdk::client::Error> for Error {
+    fn from(err: nostr_sdk::client::Error) -> Self {
+        Error::NostrClient(err)
+    }
+}
+
 impl From<nip19::Error> for Error {
     fn from(err: nip19::Error) -> Self {
         Error::Nip19(err)
@@ -41,6 +58,10 @@ impl fmt::Display for Error {
             Error::Nip19(e) => write!(f, "Nip19 error: {}", e),
             Error::Http(e) => write!(f, "HTTP error: {}", e),
             Error::Nostrdb(e) => write!(f, "Nostrdb error: {}", e),
+            Error::NostrClient(e) => write!(f, "Nostr client error: {}", e),
+            Error::NotFound => write!(f, "Not found"),
+            Error::Recv(e) => write!(f, "Recieve error: {}", e),
+            Error::InvalidNip19 => write!(f, "Invalid nip19 object"),
             Error::SliceErr => write!(f, "Array slice error"),
         }
     }