[xDai] Allow to disable particular Safe's sections based on 'features' config

[fernandomg]

Given that there are sensitive parts of the app that may not work by just switching the network, the config object has a section named features

https://github.com/gnosis/safe-react/blob/dc77aebc32a4ceb92f4bd5b8e27460a9e05d3c18/src/config/networks/network.d.ts#L36-L40

We need to explore and implement this functionality and check that either it can be implemented or remove the feature altogether.