Fix typo in LessonInformation

aleksis/apps/alsijil/frontend/components/coursebook/documentation/LessonInformation.vue

@@ -143,7 +143,7 @@ export default {
     },
     // Group teachers by their substitution status (regular, removed)
     teachersWithStatus() {
-      if (this.documentation?.amends?.amends) {
+      if (!this.documentation?.amends?.amends) {
         // Only do grouping if documentation is based on substitution
         return this.documentation.teachers;
       }