Optimize the wallet user experience and show storage

[brown9898]

Expected Behavior

1. Prompt when the connected wallet is incorrect.
2. When there is no balance during a purchase, prompt for recharge.
3. When a contract is called and the transaction verification execution fails, the exception needs to be thrown.
4. Display the storage space usage.

Development Tasks:

• Prompt when the connected wallet is incorrect.
• When there is no balance during a purchase, prompt for recharge.
• When a contract is called and the transaction verification execution fails, the exception needs to be thrown.
• Display the storage space usage.