Change background shadow under popups (alerts)

[dariatarakanova]

Background shadow should be:

• on send screen https://zpl.io/V1QM19k
• on receive screen https://zpl.io/am5MNAQ
• on other screens https://zpl.io/bzjPPe3

so everywhere it should be blured background (rgba 2 37 60, 0.3)

Now it looks like this:

[sinaizd]

TRANSACTION SCREEN TRANSACTION DETAILS I think background should be blurred.
ADDRESSES SCREEN

[sinaizd]

checked