Return Result from server main

src/server/main.rs

@@ -1,9 +1,12 @@
 use crate::App;
+use crate::util::error::{Error, Result};
 
-pub fn main() {
+pub fn main() -> Result<()> {
     if let Err(e) = dotenvy::dotenv() {
         tracing::warn!("Error reading .env: {e}");
     }
 
     dioxus::launch(App);
+
+    Err(Error::message_here("Web server exited"))
 }