clean transaction hashes from URL

[mohamedalichelbi]

Is your feature request related to a problem? Please describe.
After users confirm a transaction on wallet page, the wallet re-directs back to multicall website and passes some URL parameters, like TX errors (if any) and transaction hash. It'd be nice to store these information and clean the URL.

Describe the solution you'd like
On page load, we can scan the URL for parameters that are passed by the wallet, and store their values. Later we can act on these parameters, for example: on success, show a pop-up with link to transaction on NEAR explorer. On error: pop-up can have informative message depending on error type

[lennczar]

The correct UI element would be a "toast"