Update MegaMenu Application Customizer: Version bump to 1.1.0, localization support added, and unnecessary files removed

- Deleted obsolete localization file for English (en-us).
- Updated version number from 1.0.4 to 1.1.0 in manifests.js and manifests.json.
- Added localization support for German (de-de) in a new localization file.
- Removed unnecessary dependencies from manifests.
- Added .gitignore to exclude build artifacts and temporary files.

lib/extensions/megaMenu/MegaMenuRenderer.d.ts

@@ -1,17 +1,18 @@
-import { ApplicationCustomizerContext } from '@microsoft/sp-application-base';
 import { IMenuItem } from '../../services/IMenuItem';
-import { IMegaMenuApplicationCustomizerProperties } from './MegaMenuApplicationCustomizer';
 export declare class MegaMenuRenderer {
-    private context;
     private menuItems;
-    private updateCallback;
-    private _settingsPanel?;
-    constructor(context: ApplicationCustomizerContext, menuItems: IMenuItem[], updateCallback: (data: IMegaMenuApplicationCustomizerProperties) => void);
+    private debug;
+    private static readonly hoverOpenDelayMs;
+    private static readonly hoverCloseDelayMs;
+    private _container;
+    private _documentKeydownHandler;
+    private _documentClickHandler;
+    private _announcer;
+    constructor(menuItems: IMenuItem[], debug?: boolean);
     render(container: HTMLElement): void;
-    private createSettingsItem();
-    private openSettings();
+    dispose(): void;
     private createTopLevelItem(item);
-    private createTopLevelElement(item);
+    private createTopLevelElement(item, hasChildren, isActive, isCurrent);
     private createMegaMenu(parentItem);
     private createCategorySection(item);
     private attachEventListeners();
@@ -19,10 +20,17 @@ export declare class MegaMenuRenderer {
     private attachMouseEvents(heading, megaMenu);
     private attachFocusManagement(heading, megaMenu);
     private attachGlobalKeyboardNavigation();
+    private attachGlobalClickOutsideHandler();
     private openMegaMenu(trigger, menu);
     private closeMegaMenu(trigger, menu);
     private toggleMegaMenu(trigger, menu);
-    private closeAllMegaMenus();
+    private closeAllMegaMenus(exceptMenu?);
     private focusFirstLink(megaMenu);
+    private isItemActive(item);
+    private isCurrentUrl(url?);
+    private normalizePath(url?);
+    private getColumnCount(items?);
+    private joinClasses(...classNames);
     private createScreenReaderAnnouncer();
+    private announce(message);
 }