feat(multisig): Implement multisig page

[Hemanthghs]

Summary

• [x] Implement undelegate txn
• [x] Implement Redelegate txn
• [x] Display all multisig accounts txn in multisig overview page
• [x] Allow user to sign & broadcast txn in multisig overview page
• [x] Implement delete multisig account
• [ ] Check if account address exist in verified users table before allowing to access the page
• [ ] Move signing and broadcast logic to another file

[agouin]

This tool is great so far! We are excited to potentially use it for automating our custody operations.

Please also include:

• [ ] governance voting txn
• [ ] staking rewards claim txn
• [ ] validator commission claim txn
• [ ] custom transactions by uploading unsigned.json

[Hemanthghs]

This tool is great so far! We are excited to potentially use it for automating our custody operations.

Please also include:

• [ ] governance voting txn
• [ ] staking rewards claim txn
• [ ] validator commission claim txn
• [ ] custom transactions by uploading unsigned.json

@agouin Thanks for suggesting these features. We will definitely implement them.