feat: Implement DrugSummary component to display community insights for drugs

feat: Create LoadingSpinner component for loading states

feat: Develop SentimentChart component for visualizing sentiment trends

feat: Add SentimentSummary component to summarize sentiment data

style: Add global CSS styles for consistent theming and layout

chore: Set up main entry point for React application with TypeScript

feat: Define API types for drug and sentiment data structures

feat: Create types for sentiment data points

chore: Add Vite configuration for React application with TypeScript support

feat: Add React logo SVG asset