Redesign search tab, add category cards, recent recipes, and complete German translations

Overhaul SearchTabView with search history, empty/no-results states, and dynamic
navigation title. Extract CategoryCardView and RecentRecipesSection into standalone
views. Update RecipeTabView, RecipeListView, RecipeCardView, and MainView for the
modernized UI. Add all 12 missing German translations in Localizable.xcstrings.

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

Nextcloud Cookbook iOS Client/Views/Recipes/RecipeCardView.swift

@@ -12,52 +12,64 @@ struct RecipeCardView: View {
     @EnvironmentObject var appState: AppState
     @State var recipe: Recipe
     @State var recipeThumb: UIImage?
-    @State var isDownloaded: Bool? = nil
-    
+
+    private var keywordsText: String? {
+        guard let keywords = recipe.keywords, !keywords.isEmpty else { return nil }
+        let items = keywords.components(separatedBy: ",").map { $0.trimmingCharacters(in: .whitespaces) }.filter { !$0.isEmpty }
+        guard !items.isEmpty else { return nil }
+        return items.prefix(3).joined(separator: " \u{00B7} ")
+    }
+
     var body: some View {
-        HStack {
+        VStack(alignment: .leading, spacing: 0) {
+            // Thumbnail
             if let recipeThumb = recipeThumb {
                 Image(uiImage: recipeThumb)
                     .resizable()
                     .aspectRatio(contentMode: .fill)
-                    .frame(width: 80, height: 80)
-                    .clipShape(RoundedRectangle(cornerRadius: 17))
+                    .frame(minWidth: 0, maxWidth: .infinity, minHeight: 120, maxHeight: 120)
+                    .clipped()
             } else {
-                Image(systemName: "square.text.square")
-                    .resizable()
-                    .aspectRatio(contentMode: .fit)
-                    .foregroundStyle(Color.white)
-                    .padding(10)
-                    .background(Color("ncblue"))
-                    .frame(width: 80, height: 80)
-                    .clipShape(RoundedRectangle(cornerRadius: 17))
-            }
-            Text(recipe.name)
-                .font(.headline)
-                .padding(.leading, 4)
-                
-            Spacer()
-            if let isDownloaded = isDownloaded {
-                VStack {
-                    Image(systemName: isDownloaded ? "checkmark.circle" : "icloud.and.arrow.down")
-                        .foregroundColor(.secondary)
-                        .padding()
-                    Spacer()
+                LinearGradient(
+                    gradient: Gradient(colors: [.ncGradientDark, .ncGradientLight]),
+                    startPoint: .topLeading,
+                    endPoint: .bottomTrailing
+                )
+                .frame(minWidth: 0, maxWidth: .infinity, minHeight: 120, maxHeight: 120)
+                .overlay {
+                    Image(systemName: "fork.knife")
+                        .font(.title2)
+                        .foregroundStyle(.white.opacity(0.7))
                 }
             }
+
+            // Text content
+            VStack(alignment: .leading, spacing: 3) {
+                Text(recipe.name)
+                    .font(.subheadline)
+                    .fontWeight(.medium)
+                    .lineLimit(2)
+                    .multilineTextAlignment(.leading)
+
+                if let keywordsText {
+                    Text(keywordsText)
+                        .font(.caption2)
+                        .foregroundStyle(.secondary)
+                        .lineLimit(1)
+                }
+            }
+            .padding(.horizontal, 8)
+            .padding(.vertical, 6)
         }
         .background(Color.backgroundHighlight)
-        .clipShape(RoundedRectangle(cornerRadius: 17))
+        .clipShape(RoundedRectangle(cornerRadius: 14))
+        .shadow(color: .black.opacity(0.08), radius: 4, y: 2)
         .task {
             recipeThumb = await appState.getImage(
                 id: recipe.recipe_id,
                 size: .THUMB,
                 fetchMode: UserSettings.shared.storeThumb ? .preferLocal : .onlyServer
             )
-            if recipe.storedLocally == nil {
-                recipe.storedLocally = appState.recipeDetailExists(recipeId: recipe.recipe_id)
-            }
-            isDownloaded = recipe.storedLocally
         }
         .refreshable {
             recipeThumb = await appState.getImage(
@@ -66,6 +78,5 @@ struct RecipeCardView: View {
                 fetchMode: UserSettings.shared.storeThumb ? .preferServer : .onlyServer
             )
         }
-        .frame(height: 80)
     }
 }