Consolidate widget labels (eclipse-theia#15304)

fixed eclipse-theia#15303

Author: JonasHelming

packages/ai-chat-ui/src/browser/chat-view-widget.tsx

@@ -33,7 +33,7 @@ export namespace ChatViewWidget {
 export class ChatViewWidget extends BaseWidget implements ExtractableWidget, StatefulWidget {
 
     public static ID = 'chat-view-widget';
-    static LABEL = `${nls.localizeByDefault('Chat')}`;
+    static LABEL = nls.localize('theia/ai/chat/view/label', 'AI Chat');
 
     @inject(ChatService)
     protected chatService: ChatService;

packages/ai-history/src/browser/ai-history-widget.tsx

@@ -35,7 +35,7 @@ export class AIHistoryView extends ReactWidget implements StatefulWidget {
     protected readonly agentService: AgentService;
 
     public static ID = 'ai-history-widget';
-    static LABEL = nls.localize('theia/ai/history/view/label', '✨ AI Agent History [Alpha]');
+    static LABEL = nls.localize('theia/ai/history/view/label', 'AI Agent History [Alpha]');
 
     protected selectedAgent?: Agent;
 

packages/ai-ide/src/browser/ai-configuration/ai-configuration-widget.tsx

@@ -28,7 +28,7 @@ import { AIMCPConfigurationWidget } from './mcp-configuration-widget';
 export class AIConfigurationContainerWidget extends BaseWidget {
 
     static readonly ID = 'ai-configuration';
-    static readonly LABEL = nls.localize('theia/ai/core/aiConfiguration/label', '✨ AI Configuration [Alpha]');
+    static readonly LABEL = nls.localize('theia/ai/core/aiConfiguration/label', 'AI Configuration [Alpha]');
     protected dockpanel: DockPanel;
 
     @inject(TheiaDockPanel.Factory)