MTalk: MBTI. Friends. Chat.

Aug 1, 2024

- 80 version (1.7.8)
1. Add a buzzer notification
2. Add the ability to delete messages in the chat
3. Modifying the chat log with a specific user

- 78 version (1.7.6)
1. Modified to allow friend test even in non-member status.
2. Significant revision from 96 questions to 24 questions for the friend test.
3. fix error and bugs.