Miscellaneous fixes

In this MR:

• Show Alert if no Wi-Fi cards are connected - should be reviewed with changes here foris-js!155 (merged) and merged including respective changes and bumped version of Foris JS, otherwise the CI will not pass.
• Add CustomizationContext to the Main component - I've managed to create a "customization context", so now we don't need to call about endpoint every time to check the presence of customization. There will be a need to refactor all customizations.
• Refactor customization check on Password page
• Refactor customization check on LAN page
• Fix displaying of Turris Shield name in About
• Get rid of error message on redirect to login page

Closes: #280 (closed), foris-js#20 (closed)