feat: Add support for proposing transactions as a delegate

[usame-algan]

What it solves

Resolves #1825

How this PR fixes it

• Check if a connected wallet is a delegate and store it as a flag in useWallet
• Enable transaction buttons for delegates
• Display a DelegateForm when creating a transaction and only propose the transaction

ToDos

• [ ] The transaction should be accessible via the UI even with 0 confirmations (untrusted)
• [ ] Adjust message content on the review tx screen
• [ ] Add v2 endpoint to the SDK instead of using deprecated v1 endpoint via getDelegates

How to test it

1. Open a Safe that has a delegate who is not an owner
2. Connect with that delegate
3. Observe the New transaction button is enabled
4. Observe being able to create a transaction

Screenshots

Checklist

• [ ] I've tested the branch on mobile 📱
• [ ] I've documented how it affects the analytics (if at all) 📊
• [ ] I've written a unit/e2e test for it (if applicable) 🧑‍💻