Clear SmatageeQR APP user data

Be cautious when clearing user data, as it cannot be restored after clearing.
You will clear the following data:
1. User name and password
2. User profile
3. QR code labels and label data

The steps to clear data are as follows:
Step 1: Log in to the website (to 登 录)
Step 2: Send a verification code to the registered email and verify it successfully
Step 3: Start clearing data