[PDF Export] Add autotable plugin

[ThomasKaar]

[PDF Export] Add autotable plugin

♻️ Current situation & Problem

500 status code when calling the PDF export function locally, as reported in #25.

⚙️ Release Notes

• Adding autotable plugin to generate.ts

📚 Documentation

I don't think further documentation is needed here (similar to PR #19 in ENGAGE-HF-iOS)

✅ Testing

Setting up the Firebase functions with:

$ npm install
$ cd functions; npm install
$ npm run serve

	Before	After
$ wget -O test.pdf http://127.0.0.1:5001/stanford-bdhg-engage-hf/us-central1/exportHealthSummary	HTTP request sent, awaiting response... 500 Internal Server Error	HTTP request sent, awaiting response... 200 OK test.pdf

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[pauljohanneskraft]

Thank you for your contributions. The issue should already be resolved on the health-summary-data branch (by using import 'jsPDF-autotable' though) which is about to be merged with #19.

Just a bit of context why this problem even exists: Apparently the linter automatically 'fixed' an issue by removing the import line, which is now prohibited to be removed by disabling the linter rule for that line.