Wire up web-admin

[begelundmuller]

Also see PRD in Notion.

Task list:

• Setup configurable admin server host in web-admin
• Check if the web-admin project is up-to-date compared to web-local setup (or other new Svelte features)
• Setup Netlify deployment of web-admin to ui.rilldata.com
• Adapt dashboard component to use runtime host, instance, and (optional) auth token passed in as props (or through a context)
• Update Makefile to build svelte-query client for proto/rill/admin/v1
• Add a CI/CD check to verify that npm run build -w web-admin works on all PRs that touch web-admin Run web tests for all codepaths #1851
• Create top bar component with breadcrumbs for organization/project/dashboard and a user avatar (if user is logged in – otherwise a "log in / sign up" button) Add top navigational bar for web-admin #1893
• Setup initial dashboard page
• Create simple CTA pages with header, brief body and a button for CLI auth and Github connect flows
• Beautify the user code confirmation page here. We also need a logout button which should call {adminHost}/auth/logout?redirect={currently_open_url}. Example of currently_open_url - {adminHost}/oauth/device?user_code=2TEZA8C6

[begelundmuller]

FYI, added a note on the backend auth PR about how to implement auth in the frontend: #1866