Change crate type from lib

frontend/src/main.rs

@@ -3,10 +3,8 @@ mod components;
 mod css;
 mod page;
 
-use seed::prelude::wasm_bindgen;
 use seed::App;
 
-#[wasm_bindgen(start)]
-pub fn start() {
+pub fn main() {
     App::start("app", app::init, app::update, app::view);
 }