Refactor components and enhance metrics calculations:

- Update access denied messages to use HTML entities.
- Add autoComplete attributes to forms for better user experience.
- Improve trend calculations in sessionMetrics function.
- Update MetricCard props to accept React nodes for icons.
- Integrate Next.js Image component in Sidebar for optimization.
- Adjust ESLint rules for better code quality.
- Add new properties for trends in MetricsResult interface.
- Bump version to 0.2.0 in package.json.

lib/types.ts

@@ -131,6 +131,13 @@ export interface MetricsResult {
   tokensByDay?: DayMetrics;
   tokensCostByDay?: DayMetrics;
   wordCloudData?: WordCloudWord[]; // Added for transcript-based word cloud
+
+  // Properties for overview page cards and trends
+  uniqueUsers?: number;
+  sessionTrend?: number; // e.g., percentage change in totalSessions
+  usersTrend?: number; // e.g., percentage change in uniqueUsers
+  avgSessionTimeTrend?: number; // e.g., percentage change in avgSessionLength
+  avgResponseTimeTrend?: number; // e.g., percentage change in avgResponseTime
 }
 
 export interface ApiResponse<T> {