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/Views/FeelsSubscriptionStoreView.swift

@@ -28,7 +28,7 @@ struct FeelsSubscriptionStoreView: View {
                         .frame(width: 100, height: 100)
 
                     Image(systemName: "heart.fill")
-                        .font(.system(size: 44))
+                        .font(.largeTitle)
                         .foregroundStyle(
                             LinearGradient(
                                 colors: [.pink, .red],
@@ -40,10 +40,10 @@ struct FeelsSubscriptionStoreView: View {
 
                 VStack(spacing: 8) {
                     Text("Unlock Premium")
-                        .font(.system(size: 28, weight: .bold, design: .rounded))
+                        .font(.title.weight(.bold))
 
                     Text("Get unlimited access to all features")
-                        .font(.system(size: 16))
+                        .font(.body)
                         .foregroundStyle(.secondary)
                         .multilineTextAlignment(.center)
                 }
@@ -80,11 +80,11 @@ struct FeatureHighlight: View {
     var body: some View {
         HStack(spacing: 12) {
             Image(systemName: "checkmark.circle.fill")
-                .font(.system(size: 18))
+                .font(.headline)
                 .foregroundColor(.green)
 
             Text(text)
-                .font(.system(size: 15, weight: .medium))
+                .font(.subheadline.weight(.medium))
                 .foregroundColor(.primary)
 
             Spacer()