Change Prettier settings (#36)

## Summary

I know this is a little tedious but I'd prefer to use the same settings
as in Ruff.

jest.config.js

@@ -1,9 +1,9 @@
 module.exports = {
   clearMocks: true,
-  moduleFileExtensions: ['js', 'ts'],
-  testMatch: ['**/*.test.ts'],
+  moduleFileExtensions: ["js", "ts"],
+  testMatch: ["**/*.test.ts"],
   transform: {
-    '^.+\\.ts$': 'ts-jest'
+    "^.+\\.ts$": "ts-jest",
   },
-  verbose: true
-}
+  verbose: true,
+};