Display local/completed transactions (#3630)

* Initial fetch of local transactions

* Container allows for title specification

* Introduce TxList component

* Display local transactions in signer list

* Simplify

* Pass only hashes from calling components

* Simplify no pending display

* Render pending blocks at the top

* Get rid of time for 0 blocks

* Indeed sort Pending to the top

* Allow retrieval of pending transactions

* setTimeout with clearTimeout