Bridge UI(refactor) maintainence tasks + tracking finalisation

[abheektripathy]

Need to do some code refactoring to improve maintainability and track further issues to fix, here's the list of tasks

• componentize the code better
• errors should be more graceful
• track finalisation of transactions, and update status accordingly Bridge indexer - track tx status before it is finalized #66
• Bridge UI(feat) allow users to claim for other accounts #62
• remove try catches from lower level fns and test cc @moraesjeremias
• have a common websocket connection exposed instead of initialising multiple conns