Update code formatting CI job to fix failures and run prettier

[rocketnova]

Similar to #2021, currently, the CI "Check code formatting" job is failing on master:

> [email protected] check-format
> npx prettier --check src

npm WARN exec The following package was not found and will be installed: [email protected]
Checking formatting...
[warn] src/api/data-array.ts
[warn] src/api/inline-api.ts
[warn] src/api/plugin-api.ts
[warn] src/api/result.ts
[warn] src/data-import/inline-field.ts
[warn] src/data-import/markdown-file.ts
[warn] src/data-import/persister.ts
[warn] src/data-import/web-worker/import-impl.ts
[warn] src/data-import/web-worker/import-manager.ts
[warn] src/data-index/index.ts
[warn] src/data-index/resolver.ts
[warn] src/data-model/markdown.ts
[warn] src/data-model/value.ts
[warn] src/expression/binaryop.ts
[warn] src/expression/context.ts
[warn] src/expression/functions.ts
[warn] src/expression/parse.ts
[warn] src/main.ts
[warn] src/query/engine.ts
[warn] src/query/parse.ts
[warn] src/test/api/data-array.test.ts
[warn] src/test/function/eval.test.ts
[warn] src/test/function/functions.test.ts
[warn] src/test/function/string.test.ts
[warn] src/test/markdown/parse.file.test.ts
[warn] src/test/parse/parse.expression.test.ts
[warn] src/test/parse/parse.query.test.ts
[warn] src/ui/export/markdown.ts
[warn] src/ui/lp-render.ts
[warn] src/ui/markdown.tsx
[warn] src/ui/refreshable-view.ts
[warn] src/ui/render.ts
[warn] src/ui/views/calendar-view.ts
[warn] src/ui/views/inline-field.tsx
[warn] src/ui/views/inline-view.ts
[warn] src/ui/views/js-view.ts
[warn] src/ui/views/list-view.tsx
[warn] src/ui/views/table-view.tsx
[warn] src/ui/views/task-view.tsx
[warn] src/util/media.ts
[warn] src/util/normalize.ts
[warn] Code style issues found in 41 files. Run Prettier to fix.
Error: Process completed with exit code 1.

This is not happening locally and is resolved by this PR, which:

1. Changes the format-check CI job to run npm run install before running prettier check
2. Runs prettier on master to format existing code.

Note that the build step in the CI job will fail due to the issue identified in #2021. I have not pulled in that change to keep this PR targeted and narrow, but that's easy to do, if requested.