69 add consolelog to eslint rules

[perennialAutodidact]

## Description of changes

• Added no-console rule to ESLint config, disallowing console.log, but allowing console.warn and console.error in the back end package and console.warn in the front end package

Test steps

• (Re)Start both the front and back end servers
• In backend/app.js, add a console.log, console.warn, and console.error
• Verify that the warn and error statements are allowed, but the log statement shows as an error
• In frontend/app.jsx, add a console.log, console.warn and console.error.
• Verify that the warn statement is allowed, but the others are marked as linting errors

[russfraze]

This one again is working for me on the frontend but not the backend. This isn't giving me linting errors.

[perennialAutodidact]

console.warn and console.error are both allowed in the backend repo. The frontend repo only allows console.warn

[perennialAutodidact]

Try hitting Cmd + Shift + P and entering Developer: Restart Extension Host and see if it makes the warnings appear. This fixed it for me.

[russfraze]

It looks like this branch has conflicts with dev.