Bump dependencies

[benjamin-shen]

Summary

This pull request bumps a bunch of dependencies for security reasons & ci/cd fixes.

• firebase web v8 => web v9 (this resulted in the majority of code changes)
• removed definitely-unused dependencies

Remaining TODOs:

• firestore syntax changes in scripts, if necessary
• remove vue 2 dependencies (see if we can remove bootstrap-vue, relevant issue)

Test Plan

Check out to this PR, rm -rf node_modules, npm install, npm run serve, sanity check local app.
Do the same with the functions/ directory and check that nothing seemed to break.

Breaking Changes

• Everyone will need to update dependencies on their machines, npm install --force.

[dti-github-bot]

[diff-counting] Significant lines: 248.

[github-actions]

Visit the preview URL for this PR (updated for commit 05246be):

https://cornelldti-courseplan-dev--pr707-ben-fa22-dependencie-6i523bkq.web.app

_{(expires Mon, 26 Sep 2022 03:32:16 GMT)}

_{🔥 via Firebase Hosting GitHub Action 🌎}

[noschiff]

Thanks so much Ben for updating our firebase code to the modular Web SDK! Is there any reason we still need to use the version 8 SDK through compat for cypress?

[benjamin-shen]

That's what's suggested by the readme for cypress-firebase (look for "SDK version 9"). I imagine this is so their versions are backwards/forwards-compatible and their implementation can keep using the version 8 SDK.

[zachary-kent]

I agree that we should remove the functions directory though, most of the scripts there fail because there aren't any firebase functions actually implemented.