add nip4e settings

crates/settings/src/lib.rs

@@ -40,6 +40,7 @@ setting_accessors! {
     pub theme_mode: ThemeMode,
     pub hide_avatar: bool,
     pub screening: bool,
+    pub encryption_key: bool,
     pub auth_mode: AuthMode,
     pub trusted_relays: HashSet<RelayUrl>,
     pub room_configs: HashMap<u64, RoomConfig>,
@@ -137,6 +138,11 @@ pub struct Settings {
     /// Enable screening for unknown chat requests
     pub screening: bool,
 
+    /// Enable decoupling encryption key
+    ///
+    /// NIP-4e
+    pub encryption_key: bool,
+
     /// Authentication mode
     pub auth_mode: AuthMode,
 
@@ -157,6 +163,7 @@ impl Default for Settings {
             theme_mode: ThemeMode::default(),
             hide_avatar: false,
             screening: true,
+            encryption_key: false,
             auth_mode: AuthMode::default(),
             trusted_relays: HashSet::default(),
             room_configs: HashMap::default(),
@@ -301,6 +308,11 @@ impl AppSettings {
         }
     }
 
+    /// Check if decoupling encryption key is enabled
+    pub fn is_nip4e_enabled(&self) -> bool {
+        self.values.encryption_key
+    }
+
     /// Check if the given relay is already authenticated
     pub fn trusted_relay(&self, url: &RelayUrl, _cx: &App) -> bool {
         self.values.trusted_relays.iter().any(|relay| {