infrastructure for multiple schedules

src/views/components/injected/CoursePopup/GradeDistribution/GradeDistribution.module.scss

@@ -16,7 +16,8 @@
         select {
             z-index: $MAX_Z_INDEX;
             padding: 4px;
-            border-radius: 12px;
+            font-family: 'Inter';
+            border-radius: 8px;
             border-color: $charcoal;
         }
     }

src/views/components/injected/CoursePopup/GradeDistribution/GradeDistribution.tsx

@@ -14,6 +14,7 @@ import {
     queryAggregateDistribution,
     querySemesterDistribution,
 } from 'src/views/lib/database/queryDistribution';
+import { bMessenger } from 'src/shared/messages';
 import styles from './GradeDistribution.module.scss';
 
 enum DataStatus {