Remove 30-day VoiceInk trend

VoiceInk/Views/Metrics/MetricsContent.swift

@@ -1,5 +1,4 @@
 import SwiftUI
-import Charts
 
 struct MetricsContent: View {
     let transcriptions: [Transcription]
@@ -11,10 +10,8 @@ struct MetricsContent: View {
             ScrollView {
                 VStack(spacing: 20) {
                     TimeEfficiencyView(totalRecordedTime: totalRecordedTime, estimatedTypingTime: estimatedTypingTime)
-                    
+
                     metricsGrid
-                    
-                    voiceInkTrendChart
                 }
                 .padding()
             }
@@ -65,48 +62,6 @@ struct MetricsContent: View {
         }
     }
     
-    private var voiceInkTrendChart: some View {
-        VStack(alignment: .leading, spacing: 10) {
-            Text("30-Day VoiceInk Trend")
-                .font(.headline)
-            
-            Chart {
-                ForEach(dailyTranscriptionCounts, id: \.date) { item in
-                    LineMark(
-                        x: .value("Date", item.date),
-                        y: .value("Sessions", item.count)
-                    )
-                    .interpolationMethod(.catmullRom)
-                    
-                    AreaMark(
-                        x: .value("Date", item.date),
-                        y: .value("Sessions", item.count)
-                    )
-                    .foregroundStyle(LinearGradient(colors: [.blue.opacity(0.3), .blue.opacity(0.1)], startPoint: .top, endPoint: .bottom))
-                    .interpolationMethod(.catmullRom)
-                }
-            }
-            .chartXAxis {
-                AxisMarks(values: .stride(by: .day, count: 7)) { _ in
-                    AxisGridLine()
-                    AxisTick()
-                    AxisValueLabel(format: .dateTime.day().month(), centered: true)
-                }
-            }
-            .chartYAxis {
-                AxisMarks { value in
-                    AxisGridLine()
-                    AxisTick()
-                    AxisValueLabel()
-                }
-            }
-            .frame(height: 250)
-        }
-        .padding()
-        .background(Color(.controlBackgroundColor))
-        .cornerRadius(10)
-        .shadow(radius: 2)
-    }
     
     // Computed properties for metrics
     private var totalWordsTranscribed: Int {
@@ -124,21 +79,6 @@ struct MetricsContent: View {
         return estimatedTypingTimeInMinutes * 60
     }
     
-    private var dailyTranscriptionCounts: [(date: Date, count: Int)] {
-        let calendar = Calendar.current
-        let now = Date()
-        let thirtyDaysAgo = calendar.date(byAdding: .day, value: -29, to: now)!
-        
-        let dailyData = (0..<30).compactMap { dayOffset -> (date: Date, count: Int)? in
-            guard let date = calendar.date(byAdding: .day, value: -dayOffset, to: now) else { return nil }
-            let startOfDay = calendar.startOfDay(for: date)
-            let endOfDay = calendar.date(byAdding: .day, value: 1, to: startOfDay)!
-            let count = transcriptions.filter { $0.timestamp >= startOfDay && $0.timestamp < endOfDay }.count
-            return (date: startOfDay, count: count)
-        }
-        
-        return dailyData.reversed()
-    }
     
     // Add computed properties for new metrics
     private var averageWordsPerMinute: Double {