Link transaction ids of Watcher action responses to their appropriate block explorer

[mkermani144]

Description

When any of the current actions in Watcher is successful, the response of the action API call includes a transaction id that is shown to the user. This transaction id should be linked to its appropriate block explorer based on Watcher network, and only a partial representation of the transaction should be shown.

Acceptance conditions

• All 3 actions should be updated
• For getting the url from a transaction id, getTxURL utility should be used
• For displaying the transaction id partially, Id component should be used
• target for the links should be _blank