refactor: ♻️ error handling for permission and window

protocol/src/lib.rs

@@ -10,6 +10,7 @@ pub struct User {
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub enum Error {
+    Window,
     Permission(String),
     MediaPlay(String),
     MediaStream(String),
@@ -42,6 +43,7 @@ impl std::error::Error for Error {
 impl Display for Error {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
+            Error::Window => write!(f, "Window"),
             Error::Permission(permission_cause) => write!(f, "Permission | {}", permission_cause),
             Error::MediaPlay(err_val) => write!(f, "Media Play | {}", err_val),
             Error::MediaStream(err_val) => write!(f, "Media Stream | {}", err_val),