Expand receive address with more info

[timoxley]

Looks less like a QR code, more like a stovetop:

Lack of tooltip to tell me what it this is also doesn't help.

[haustraliaer]

Gonna change this icon to an expand icon and add the full address + any share buttons to the modal.

[haustraliaer]

Initial content sorted - assigning to @jenbennings for:

• [x] new icon
• [ ] share buttons (contextual?)

[jenbennings]

What share buttons are we going to include?

On web we could pre-fill an e-mail body using the default e-mail application, however on the Cordova build I'd like to integrate something like this too.