Fix feature card truncation and unequal sizing on subscription screens

Replace HStack layout with LazyVGrid for uniform card sizing, remove
lineLimit(1) to allow multiline subtitles, and add 1:1 aspect ratio
so all four feature cards are identical squares across all 12 themes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Shared/Views/ReflectSubscriptionStoreView.swift

@@ -1976,9 +1976,13 @@ struct JournalPagesView: View {
 struct FeatureCardsGrid: View {
     let style: PaywallStyle
 
+    private let columns = [
+        GridItem(.flexible(), spacing: 12),
+        GridItem(.flexible(), spacing: 12)
+    ]
+
     var body: some View {
-        VStack(spacing: 12) {
+        LazyVGrid(columns: columns, spacing: 12) {
-            HStack(spacing: 12) {
             FeatureCard(
                 icon: "chart.line.uptrend.xyaxis",
                 title: "See Patterns",
@@ -1993,8 +1997,6 @@ struct FeatureCardsGrid: View {
                 style: style,
                 accentIndex: 1
             )
-            }
-            HStack(spacing: 12) {
             FeatureCard(
                 icon: "heart.circle",
                 title: "Health Sync",
@@ -2012,7 +2014,6 @@ struct FeatureCardsGrid: View {
         }
     }
 }
-}
 
 struct FeatureCard: View {
     let icon: String
@@ -2041,11 +2042,13 @@ struct FeatureCard: View {
                 Text(subtitle)
                     .font(.system(size: 11, weight: .medium))
                     .foregroundColor(subtitleColor)
-                    .lineLimit(1)
+                    .fixedSize(horizontal: false, vertical: true)
             }
+            Spacer(minLength: 0)
         }
         .frame(maxWidth: .infinity, alignment: .leading)
         .padding(14)
+        .aspectRatio(1, contentMode: .fill)
         .background(cardBackground)
     }