feat(route): add 厦门大学航院 (#8137)

* feat(route): add 厦门大学航院

* Simplify the code

* Fix the problem of tryGet

lib/router.js

@@ -945,6 +945,9 @@ router.get('/lyu/news/:type', lazyloadRouteHandler('./routes/universities/lyu/ne
 // 福州大学
 router.get('/fzu/:type', lazyloadRouteHandler('./routes/universities/fzu/news'));
 
+// 厦门大学
+router.get('/xmu/aero/:type', lazyloadRouteHandler('./routes/universities/xmu/aero'));
+
 // ifanr
 router.get('/ifanr/:channel?', lazyloadRouteHandler('./routes/ifanr/index'));