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/OnboardingTitle.swift

@@ -23,6 +23,7 @@ struct OnboardingTitle: View {
                 .opacity(0.04)
                 .scaleEffect(1.2)
                 .padding(.bottom, 55)
+                .accessibilityHidden(true)
             
             ScrollView {
                 VStack{
@@ -37,8 +38,7 @@ struct OnboardingTitle: View {
 //                            onboardingData.title = option
                         }, label: {
                             Text(option)
-                                .font(.system(size: 15))
-                                .fontWeight(.bold)
+                                .font(.subheadline.weight(.bold))
                                 .foregroundColor(.white)
                                 .padding(10)
                                 .background(RoundedRectangle(cornerRadius: 10).stroke().foregroundColor(Color.white))