feat: create frontend GitHub actions workflows, added new frontend template

[rak3rman]

Refactored existing Github Actions workflows to make the purpose of each workflow more clear. Added additional workflows and utils to support stand up and teardown of staging envs for the next frontend. Completely wiped the existing frontend in favor of a next.js template that works nicely with Cloudflare Pages. Closes #96.

[github-actions[bot]]

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[rak3rman]

Evidence of the Staging Teardown script working on Github Actions runners: https://github.com/radicalplatforms/shafa/actions/runs/8463035681 Didn't end up testing the Production Deploy script since, well, it deploys to production. I feel confident in the code as it is similar to the Next Integration script.