refactor(frontend) Refactor and move components

[amanape]

The objective of this PR is to

• break down large components (approximately > 150 lines) into smaller ones,
• move components into appropriate directories

Components are organized into folders based on their domain, feature, or shared functionality.

components
├── features # Domain-specific components
├── layout
└── shared # Shared UI components

• Added custom base-button to TailwindCSS for common button styles

This PR does not break down or merge some of the modal components as much as I initially planned. I hope to address this soon by implementing the Compound Component Pattern, which should provide a more convenient and flexible way to build them.

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To run this PR locally, use the following command:

docker run -it --rm   -p 3000:3000   -v /var/run/docker.sock:/var/run/docker.sock   --add-host host.docker.internal:host-gateway   -e SANDBOX_RUNTIME_CONTAINER_IMAGE=docker.all-hands.dev/all-hands-ai/runtime:e31a1fd-nikolaik   --name openhands-app-e31a1fd   docker.all-hands.dev/all-hands-ai/openhands:e31a1fd

[rbren]

There's a LOT here--is there an easy way to break it down into smaller PRs?

I assume this is all just refactoring and no functional changes--if you're confident w/ it I'm happy to approve but it's a lot to review 😅

[amanape]

Yes it is a lot, I recommend you switch to the branch on your local IDE so the changes will become clear.

What I've done:

1. Break down components into smaller ones (e.g., jupyter.tsx into jupyter.tsx, jupyter-cell.tsx, etc...)
2. Organize them into folders (features/jupyter/jupyter.tsx, features/jupyter/jupyter-cell.tsx, etc...)
3. Update imports

There is no change in behaviour or logic, only reducing component size/complexity, removing duplicates (e.g., two different loading-spinner.tsx, moving some logic into functions and into utils (e.g., parse-cell-content.ts)

[amanape]

Sorry, I know it is a lot but the alternative would have been ~10-20 different PRs for breaking down and/or moving each component. Since there is no behaviour/logic changes, I thought I'd just submit it at once. It is more of a "look at the IDE file tree PR" rather than testing features

[rbren]

sounds like this is mostly just copy/paste, so the diff isn't as scary as it looks. 🍰