refactor: add compile error for wasm target

src/main.rs

@@ -24,3 +24,7 @@ fn main() -> eframe::Result {
 }
 
 // TODO: add a main for compiling to wasm
+#[cfg(target_arch = "wasm32")]
+fn main() {
+    compile_error!("compiling for wasm is not implemented")
+}