Bump chia-blockchain-gui to 2.0.0-rc4 (#15989)

Bump chia-blockchaing-gui to 8f43234de14eeb04df4fca19cb1de1184ec47f53

* Use lerna 7.1.3 and nx 16.3.2 for macos 10.14 building by @emlowe in Chia-Network/chia-blockchain-gui#1917
* Fix "From" to "To" in wallet history by @zsolt-dev in Chia-Network/chia-blockchain-gui#1939
* Hide harvester tab in setting page in wallet mode by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1941
* Update "Clawback will be applied." warning by @zsolt-dev in Chia-Network/chia-blockchain-gui#1940
* Fixed add plot page by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1954
* Add clawBackExpiration behind the expand TX row for clawback sender by @zsolt-dev in Chia-Network/chia-blockchain-gui#1950
* Hide clawback TXs while wallet is syncing by @zsolt-dev in Chia-Network/chia-blockchain-gui#1951
* Updated harvester setting page by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1949
* Design fixes to Address Book by @lipalong in Chia-Network/chia-blockchain-gui#1957
* Hide GPU setting when it is not available by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1959
* `start_plotting` fix by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1958
* Icon updates by @paninaro in Chia-Network/chia-blockchain-gui#1967
* The label of `last block won` is now `Never` when there are no blocks… by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1971
* Hide temp folder selection on cudaplot by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1972
* Update Electron to 25.4.0 for security fixes by @paninaro in Chia-Network/chia-blockchain-gui#1976
* Plot filter value now is the function of height by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1979
* Fixed inconsistent step count by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1986
* Added compressed plot size texts by @ChiaMineJP in Chia-Network/chia-blockchain-gui#1987

**Full Changelog**: Chia-Network/chia-blockchain-gui@2.0.0-rc2...2.0.0-rc4