Fix display of pending transactions in activity

[markmhendrickson]

They seem not to appear while pending, either for delegation transactions or regular STX sends:

First

Then

[314159265359879]

@markmhx as Hero-Gamer pointed out in #1161 otherwise the user might attempt again creating unnecessary duplicate tx. we have definitely been seeing that. Perhaps a good reason to handle this as a P2 because it adds additional issues when users do not realize prior transactions are successfully transmitted.

[markmhendrickson]

@kyranjamie reminder about this one while you're in the desktop code 🙏

[kyranjamie]

@markmhx @314159265359879 Are we sure this is a problem still?

It could've been that there were a temp issue with the mempool?

[markmhendrickson]

Mind sending a transaction on mainnet to test / confirm? If you need me to, I can also QA it again.

[kyranjamie]

This also worked too

[markmhendrickson]

This worked for me now too in my testing 🤷