Show list of recent networks

[chrtannus]

Description of new feature

Show list of recent networks in the home page.

• For each network, show a thumbnail, the network name and the last opened date
• Clicking a network entry should open it (on a new tab?)
• The user must be able to delete each network entry
• Use the browser's local storage if there's no user account
• There should be a limit if it uses the local storage (e.g. 20-25 networks).

Motivation for new feature

Even if we provide a login, it probably won't be mandatory, so it would be useful to show a list (thumbnails) of the last opened networks.

[chrtannus]

The UI so far:

• Popup menu:
  

• Confirmation Dialog: