Bump prettier version + make course graph button more obvious

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 88.16%. Comparing base (b69db30) to head (84e6928).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #503 +/- ## ======================================= Coverage 88.16% 88.16% ======================================= Files 43 43 Lines 6124 6124 ======================================= Hits 5399 5399 Misses 725 725 ```

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