feat(multisig): Implement multisig page

[Hemanthghs]

Summary

• Implement undelegate txn
• Implement Redelegate txn
• Display all multisig accounts txn in multisig overview page
• Allow user to sign & broadcast txn in multisig overview page
• 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.