Redesign recipe creation and edit view with Form-based layout and URL import

Replace the single "+" button with a 2-option menu (Create New Recipe / Import
from URL) across RecipeTabView, RecipeListView, and AllRecipesListView. Add
ImportURLSheet for server-side recipe import with loading and error states.

Completely redesign edit mode to use a native Form layout with inline editing
for all sections (metadata, duration, ingredients, instructions, tools,
nutrition) instead of the previous sheet-based EditableListView approach. Move
delete action from edit toolbar to view mode context menu. Add recipe image
display to the edit form.

Refactor RecipeListView and AllRecipesListView to use closure-based callbacks
instead of Binding<Bool> for the create/import actions. Add preloadedRecipeDetail
support to RecipeView.ViewModel for imported recipes.

Add DE/ES/FR translations for all new UI strings.

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

Nextcloud Cookbook iOS Client/Views/Recipes/RecipeViewSections/RecipeNutritionSection.swift

@@ -63,10 +63,42 @@ struct RecipeNutritionSection: View {
     
     func nutritionEmpty() -> Bool {
         for nutrition in Nutrition.allCases {
-            if let value = viewModel.observableRecipeDetail.nutrition[nutrition.dictKey] {
+            if let _ = viewModel.observableRecipeDetail.nutrition[nutrition.dictKey] {
                 return false
             }
         }
         return true
     }
 }
+
+// MARK: - Recipe Edit Nutrition Section (Form-based)
+
+struct RecipeEditNutritionSection: View {
+    @Binding var nutrition: [String: String]
+
+    @State private var isExpanded: Bool = false
+
+    var body: some View {
+        Section {
+            DisclosureGroup("Nutrition Information", isExpanded: $isExpanded) {
+                ForEach(Nutrition.allCases, id: \.self) { item in
+                    HStack {
+                        Text(item.localizedDescription)
+                            .lineLimit(1)
+                        Spacer()
+                        TextField("", text: nutritionBinding(for: item.dictKey))
+                            .multilineTextAlignment(.trailing)
+                            .frame(maxWidth: 150)
+                    }
+                }
+            }
+        }
+    }
+
+    private func nutritionBinding(for key: String) -> Binding<String> {
+        Binding(
+            get: { nutrition[key, default: ""] },
+            set: { nutrition[key] = $0 }
+        )
+    }
+}