Refactor panel position management and enhance recipe card handling

- Removed redundant updatePanelPositions calls from various components and centralized the logic in the uiHelpers.js for better maintainability.
- Introduced appendRecipeCards function in RecipeManager to streamline the addition of recipe cards from search results.
- Cleaned up unused code related to search input handling and recipe loading, improving overall code clarity and performance.
- Updated HeaderManager and SearchManager to utilize the new updatePanelPositions function, ensuring consistent panel positioning across the application.

static/js/components/Header.js

@@ -101,53 +101,4 @@ export class HeaderManager {
         });
       }
     }
-    
-    // Helper method to update panel positions (can be called from window resize handlers)
-    updatePanelPositions() {
-      if (this.searchManager && typeof this.searchManager.updatePanelPositions === 'function') {
-        this.searchManager.updatePanelPositions();
-      } else {
-        const searchOptionsPanel = document.getElementById('searchOptionsPanel');
-        const filterPanel = document.getElementById('filterPanel');
-        
-        if (!searchOptionsPanel && !filterPanel) return;
-        
-        // Get the header element
-        const header = document.querySelector('.app-header');
-        if (!header) return;
-        
-        // Calculate the position based on the bottom of the header
-        const headerRect = header.getBoundingClientRect();
-        const topPosition = headerRect.bottom + 5; // Add 5px padding
-        
-        // Set the positions
-        if (searchOptionsPanel) {
-          searchOptionsPanel.style.top = `${topPosition}px`;
-        }
-        
-        if (filterPanel) {
-          filterPanel.style.top = `${topPosition}px`;
-        }
-        
-        // Adjust panel horizontal position based on the search container
-        const searchContainer = document.querySelector('.header-search');
-        if (searchContainer) {
-          const searchRect = searchContainer.getBoundingClientRect();
-          
-          // Position the search options panel aligned with the search container
-          if (searchOptionsPanel) {
-            searchOptionsPanel.style.right = `${window.innerWidth - searchRect.right}px`;
-          }
-          
-          // Position the filter panel aligned with the filter button
-          if (filterPanel) {
-            const filterButton = document.getElementById('filterButton');
-            if (filterButton) {
-              const filterRect = filterButton.getBoundingClientRect();
-              filterPanel.style.right = `${window.innerWidth - filterRect.right}px`;
-            }
-          }
-        }
-      }
-    }
-  }
+}