Update import statements, set TTSEnabled in TTSModeSettings, and fix fetchChatModels error handling

src/services/tts.ts

@@ -36,6 +36,9 @@ export const setVoice = async (voice: string) => {
 
 export const isTTSEnabled = async () => {
   const data = await storage.get("isTTSEnabled")
+  if(!data  || data.length === 0) {
+    return true
+  }
   return data === "true"
 }
 
@@ -45,6 +48,9 @@ export const setTTSEnabled = async (isTTSEnabled: boolean) => {
 
 export const isSSMLEnabled = async () => {
   const data = await storage.get("isSSMLEnabled")
+  if(!data  || data.length === 0) {
+    return true
+  }
   return data === "true"
 }