Adopt shadcn as core component library

[jovnc]

Fixes #2

[Copilot]

Pull request overview

This pull request adopts shadcn/ui as the core component library, integrating Radix UI primitives with a custom design system and Tailwind CSS for styling. The PR adds reusable Button and Table components following the shadcn pattern and updates existing components to use these new primitives.

Changes:

• Added shadcn/ui configuration with path aliases and design system tokens
• Implemented Button and Table components using Radix UI and class-variance-authority
• Migrated existing components (HomePage, StatusMessage, ExerciseTable, DashboardHeader) to use the new UI components

Reviewed changes

Copilot reviewed 10 out of 12 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
components.json	Configures shadcn/ui with aliases, style preferences, and icon library settings
tsconfig.json	Adds path alias configuration for @/* imports (duplicates tsconfig.app.json)
package.json	Adds dependencies: Radix UI, clsx, tailwind-merge, lucide-react, class-variance-authority, and animation libraries
yarn.lock	Locks versions for new dependencies including Radix UI components and utility libraries
src/styles/index.css	Adds comprehensive design tokens for light/dark themes and custom Tailwind variant for dark mode
src/lib/utils.ts	Implements cn utility function for merging Tailwind classes
src/components/ui/button.tsx	Creates Button component with multiple variants using Radix Slot and CVA
src/components/ui/table.tsx	Implements accessible Table components with forwarded refs
src/pages/index.tsx	Replaces native button with shadcn Button component
src/components/dashboard/StatusMessage.tsx	Updates to use Button component with asChild pattern for links
src/components/dashboard/ExerciseTable.tsx	Migrates from native table elements to shadcn Table components
src/components/dashboard/DashboardHeader.tsx	Replaces links and buttons with shadcn Button components

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[Copilot]

Pull request overview

Copilot reviewed 10 out of 12 changed files in this pull request and generated 3 comments.

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[Copilot]

Pull request overview

Copilot reviewed 11 out of 13 changed files in this pull request and generated 2 comments.

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[jiaxinnns]

Small detail to take note of, otherwise LGTM!

[jovnc]

@damithc FYI, I'll be merging this in, functionally there isn't any change, but visually there are some slight enhancements brought from shadcn.

Some UI Updates