[Issue #280]: add node/npm min versions to package.json

[rylew1]

Ticket

Resolves #280

Changes

• add min node/npm version

Testing

• can't npm install with an older version of node

[github-actions[bot]]

Coverage report for app

St.:grey_question:	Category	Percentage	Covered / Total
🟢	Statements	93.1%	81/87
🟢	Branches	82.35%	14/17
🟢	Functions	93.33%	14/15
🟢	Lines	93.59%	73/78

Test suite run success

16 tests passing in 5 suites.

Report generated by 🧪jest coverage report action from 131d7dbbff6a9740933b6070edecb4b85c9f992c