chore: refactor generic web server code into quark

crates/quark/src/web/cors.rs

@@ -0,0 +1,19 @@
+use std::str::FromStr;
+
+pub use rocket_cors::catch_all_options_routes;
+use rocket_cors::{AllowedOrigins, Cors};
+
+pub fn fairing() -> Cors {
+    rocket_cors::CorsOptions {
+        allowed_origins: AllowedOrigins::All,
+        allowed_methods: [
+            "Get", "Put", "Post", "Delete", "Options", "Head", "Trace", "Connect", "Patch",
+        ]
+        .iter()
+        .map(|s| FromStr::from_str(s).unwrap())
+        .collect(),
+        ..Default::default()
+    }
+    .to_cors()
+    .expect("Failed to create CORS.")
+}