fix(chat-box): fix voice box for safari

wait for voiceschanged only for chrome

Author: xmlking

apps/webapp/src/manifest.json

@@ -1,5 +1,5 @@
 {
-  "name": "webapp",
+  "name": "NGX Starter Kit",
   "short_name": "webapp",
   "theme_color": "#1976d2",
   "background_color": "#fafafa",
@@ -48,4 +48,4 @@
       "type": "image/png"
     }
   ]
-}
+}

libs/chat-box/src/lib/services/text-to-speech.service.ts

@@ -24,9 +24,12 @@ export class TextToSpeechService {
   }
 
   public async getVoiceList(): Promise<SpeechSynthesisVoice[]> {
-    await new Promise((resolve, reject) => {
-      this.speechSynthesis.addEventListener('voiceschanged', resolve);
-    });
+
+    if ('onvoiceschanged' in speechSynthesis) {
+      await new Promise((resolve, reject) => {
+        this.speechSynthesis.addEventListener('voiceschanged', resolve);
+      });
+    }
     return this.speechSynthesis.getVoices();
 
     // return new Promise((resolve: any, reject: any): void => {