feat: renamed routers to routes

src/core/express/normalizeRouteReturnable.ts

@@ -1,8 +1,8 @@
-import { RouterReturnable } from '../../server.js';
+import { RouteReturnable } from '../../server.js';
 import jsxToSvg from '../node/jsxToSvg.js';
 
-export default async function normalizeRouterReturnable(
-  returnable: RouterReturnable,
+export default async function normalizeRouteReturnable(
+  returnable: RouteReturnable,
 ) {
   const awaitedReturnable = await returnable;
   const svg = await jsxToSvg(awaitedReturnable);