Updated linter github action for frontend

## Notion ticket link
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## Implementation description
* 


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## Steps to test
1.


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## Checklist
- [ ] My PR name is descriptive and in imperative tense
- [ ] My commit messages are descriptive and in imperative tense. My
commits are atomic and trivial commits are squashed or fixup'd into
non-trivial commits
- [ ] I have run the appropriate linter(s)
- [ ] I have requested a review from the PL, as well as other devs who
have background knowledge on this PR or who will be building on top of
this PR

Author: ebwu95

.github/workflows/lint.yml

@@ -47,7 +47,7 @@ jobs:
       - name: Lint frontend
         if: steps.changes.outputs.frontend == 'true'
         working-directory: ./frontend
-        run: npm run lint
+        run: npx prettier . --check
 
       - name: Lint Python backend
         if: steps.changes.outputs.backend == 'true'