Add Navigation Icons

[MathNodes]

On bottom of left panel in the MainScren redesign, appropriately add the following navigation icons:

• Wallet
• Current Node Subscriptions
• Subscription Plans
• Settings
• Help

We will hold off on adding favorites as that will require FIFO data writes and reads and could require a SQLite DB if we wanted to go that route.

[MathNodes]

Only thing left on here is to activate the routine calls from nav icons

[MathNodes]

Completed. Just need to set the routines.