LF-3893: RFC for component library

[antsgar]

Description

Initial example setup for component library package and example migration of one component (HoverPill component).
To be reviewed in the context of the RFC and together with the document https://lite-farm.atlassian.net/wiki/spaces/LITEFARM/pages/1449918527/RFC%3A+Component+Library,

Jira link:
https://lite-farm.atlassian.net/browse/LF-3893
https://lite-farm.atlassian.net/browse/LF-3895

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Passes test case
• UI components visually reviewed on desktop view
• UI components visually reviewed on mobile view
• Other (please explain)

Checklist:

• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• The precommit and linting ran successfully
• I have added or updated language tags for text that's part of the UI
• I have added "MISSING" for all new language tags to languages I don't speak
• I have added the GNU General Public License to all new files

[Duncan-Brain]

Was this file accidentally commited?

[kathyavini]

I'm wondering if there is a new setup step I am missing for running this branch? After pnpm install in packages/component-library I can't get the webapp to load anymore, I receive this error:

I saw there were pnpm-lock.yaml changes in root that referred to vite (but no package.json updates) -- was something supposed to be installed in the root directory as well?