Automate dashboard artifact building process

## Type of Issue

Select the type of issue:
- [ ] Bug report (to report a bug)
- [x] Feature request (to request an additional feature)
- [ ] Tracker (I am just using this as a tracker)
- [ ] Refactor request
- [ ] Documentation Ask

## Description

Now for each dashboard frontend changes we'll need to manually run `yarn build` and check in the build files. Use workflow/CI to automate this process: that is, detect if there's any frontend changes and if there's any, automatically build it and check them in.