Fix widget layout clipping and add comprehensive widget previews

- Fix LargeVotingView mood icons getting clipped at edges by using
  flexible HStack spacing with maxWidth: .infinity
- Fix VotingView medium layout with smaller icons and even distribution
- Add comprehensive #Preview macros for all widget states:
  - Vote widget: small/medium, voted/not voted, all mood states
  - Timeline widget: small/medium/large with various data states
- Reduce icon sizes and padding to fit within widget bounds
- Update accessibility labels and hints across views

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Shared/Onboarding/views/OnboardingStyle.swift

@@ -31,7 +31,7 @@ struct OnboardingStyle: View {
                             .frame(width: 100, height: 100)
 
                         Image(systemName: "paintpalette.fill")
-                            .font(.system(size: 40))
+                            .font(.largeTitle)
                             .foregroundColor(.white)
                     }
                     .padding(.top, 40)
@@ -39,13 +39,13 @@ struct OnboardingStyle: View {
 
                     // Title
                     Text("Make it yours")
-                        .font(.system(size: 28, weight: .bold, design: .rounded))
+                        .font(.title.weight(.bold))
                         .foregroundColor(.white)
                         .padding(.bottom, 8)
 
                     // Subtitle
                     Text("Choose your favorite style")
-                        .font(.system(size: 16, weight: .medium))
+                        .font(.body.weight(.medium))
                         .foregroundColor(.white.opacity(0.85))
                         .padding(.bottom, 20)
 
@@ -57,7 +57,7 @@ struct OnboardingStyle: View {
                     // Icon Style Section
                     VStack(alignment: .leading, spacing: 10) {
                         Text("Icon Style")
-                            .font(.system(size: 14, weight: .semibold))
+                            .font(.subheadline.weight(.semibold))
                             .foregroundColor(.white.opacity(0.9))
                             .padding(.horizontal, 24)
 
@@ -82,7 +82,7 @@ struct OnboardingStyle: View {
                     // Color Theme Section
                     VStack(alignment: .leading, spacing: 10) {
                         Text("Mood Colors")
-                            .font(.system(size: 14, weight: .semibold))
+                            .font(.subheadline.weight(.semibold))
                             .foregroundColor(.white.opacity(0.9))
                             .padding(.horizontal, 24)
 
@@ -105,9 +105,9 @@ struct OnboardingStyle: View {
                     // Hint
                     HStack(spacing: 8) {
                         Image(systemName: "arrow.left.arrow.right")
-                            .font(.system(size: 14))
+                            .font(.subheadline)
                         Text("You can change these anytime in Customize")
-                            .font(.system(size: 13, weight: .medium))
+                            .font(.caption.weight(.medium))
                     }
                     .foregroundColor(.white.opacity(0.7))
                     .padding(.top, 20)
@@ -130,14 +130,15 @@ struct OnboardingStylePreview: View {
                 .aspectRatio(contentMode: .fit)
                 .frame(width: 44, height: 44)
                 .foregroundColor(moodTint.color(forMood: .good))
+                .accessibilityLabel(Mood.good.strValue)
 
             VStack(alignment: .leading, spacing: 4) {
                 Text("Wednesday - 10th")
-                    .font(.system(size: 17, weight: .semibold))
+                    .font(.body.weight(.semibold))
                     .foregroundColor(.white)
 
                 Text(Mood.good.strValue)
-                    .font(.system(size: 14))
+                    .font(.subheadline)
                     .foregroundColor(.white.opacity(0.8))
             }
 
@@ -167,6 +168,7 @@ struct OnboardingIconPackOption: View {
                         .aspectRatio(contentMode: .fit)
                         .frame(width: 24, height: 24)
                         .foregroundColor(moodTint.color(forMood: mood))
+                        .accessibilityLabel(mood.strValue)
                 }
             }
             .padding(.horizontal, 16)