Show first or last day in url if visible regardless of its position

aleksis/apps/alsijil/frontend/components/coursebook/Coursebook.vue

@@ -298,7 +298,9 @@ export default {
         if (entry.isIntersecting) {
 
           // TODO: Make 165 a var?
-          if (entry.boundingClientRect.top <= 165) {
+          if ((entry.boundingClientRect.top <= 165)
+              || first
+              || last) {
             console.log('@', date.toISODate());
             this.setDate(date.toISODate());
           }