Provide a fallback for markets where signatgure request approval does not work as expected.

[helpfulBro]

Describe the bug A user is attempting to repay a USDT borrow, taps the 'Approve USDT' button, sees a spinner but no prompts in connected wallet (d'cent wallet connected via wallet connect).

The Aave UI is waiting for a response from the wallet, the wallet is not allowing the user to sign so there is no error and the user can only refresh and try again.

Expected behavior Provide a fallback that allows the user to submit a TX for approval. Some ideas,

1. If after X time there is no response from the user assume there is an issue and show a new button that allows the user to submit a TX for approval.
2. Include a secondary link that allows for approval on every 'signature request' approval. This could be confusing from a UX perspective so perhaps if 1. can be implemented that might be better.