Explorer: some pages are doing twice the work

[bchamagne]

Describe the problem you discovered

Example page: https://testnet.archethic.net/explorer/transaction/000004ED230762C7E08D4438221AC1850409F061BC552DBD8B25A678FEEA7FD235C4

when reloading this page, the handle_params is called twice, resulting in 2 search_transaction.

There is probably the same behaviour on multiple pages.

Describe the solution you'd like

Reloading the page should trigger search_transaction only once.

Epic

#146

[samuelmanzanera]

We could probably try to load the data on mount and check whether the websocket is connected or not, with socket.connected? indicating in which state the page loading is.