Add network select to network config table

[lempira]

There were several items in this PR that were requested internally. The requests were the following:

• The main request was to be able to select a network through a drop-down in app header instead of going through the settings page only
• The second was to be able to "activate" the network in the settings page from the table instead of the drop-down.

The app before remembered the saved network and had some redirects so that when you went to settings, selected a network and clicked the back btn, you go back to the previous page but with the new selected network. This made the behavior of selecting the network from the header not work as it assumed it could only be done in settings. Now, the same workflow (i.e. hitting the back button) takes you to the network that was selected before. If you want to change the network from the settings page, you should then click on a page like Explore in order to take you to that network's explore.
If you are on a page that has some resource (asset, txn, application etc) that is not on that network, I added a custom error message to the error page that would ask the users if they were on the correct network and a link that would take them to the main feature page with that network selected.

Kapture.2024-11-21.at.15.40.59.mp4

New Settings Page

Error Page with 404

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