chore: rework login and identity (#129)

* .

* redesign onboarding screen

* .

* add signer proxy

* .

* .

* .

* .

* fix proxy

* clean up

* fix new account

crates/signer_proxy/src/error.rs

@@ -0,0 +1,73 @@
+use std::{fmt, io};
+
+use hyper::http;
+use nostr::event;
+use oneshot::RecvError;
+
+/// Error
+#[derive(Debug)]
+pub enum Error {
+    /// I/O error
+    Io(io::Error),
+    /// HTTP error
+    Http(http::Error),
+    /// Json error
+    Json(serde_json::Error),
+    /// Event error
+    Event(event::Error),
+    /// Oneshot channel receive error
+    OneShotRecv(RecvError),
+    /// Generic error
+    Generic(String),
+    /// Timeout
+    Timeout,
+    /// The server is shutdown
+    Shutdown,
+}
+
+impl std::error::Error for Error {}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Io(e) => write!(f, "{e}"),
+            Self::Http(e) => write!(f, "{e}"),
+            Self::Json(e) => write!(f, "{e}"),
+            Self::Event(e) => write!(f, "{e}"),
+            Self::OneShotRecv(e) => write!(f, "{e}"),
+            Self::Generic(e) => write!(f, "{e}"),
+            Self::Timeout => write!(f, "timeout"),
+            Self::Shutdown => write!(f, "server is shutdown"),
+        }
+    }
+}
+
+impl From<io::Error> for Error {
+    fn from(e: io::Error) -> Self {
+        Self::Io(e)
+    }
+}
+
+impl From<http::Error> for Error {
+    fn from(e: http::Error) -> Self {
+        Self::Http(e)
+    }
+}
+
+impl From<serde_json::Error> for Error {
+    fn from(e: serde_json::Error) -> Self {
+        Self::Json(e)
+    }
+}
+
+impl From<event::Error> for Error {
+    fn from(e: event::Error) -> Self {
+        Self::Event(e)
+    }
+}
+
+impl From<RecvError> for Error {
+    fn from(e: RecvError) -> Self {
+        Self::OneShotRecv(e)
+    }
+}