clearer title generation error message

fixes #329

src/hooks/useSubmit.ts

@@ -23,6 +23,7 @@ const useSubmit = () => {
     message: MessageInterface[]
   ): Promise<string> => {
     let data;
+    try {
       if (!apiKey || apiKey.length === 0) {
         // official endpoint
         if (apiEndpoint === officialAPIEndpoint) {
@@ -44,6 +45,9 @@ const useSubmit = () => {
           apiKey
         );
       }
+    } catch (error: unknown) {
+      throw new Error(`Error generating title!\n${(error as Error).message}`);
+    }
     return data.choices[0].message.content;
   };