Donation: DonationViewController

• grey background that dims the setting screen, fades in and out
• title with close button on the top, close button dismisses flow
• tapping grey background will dismiss viewcontroller as well
• second part contains donation label followed by textfield
• textfield should be international, meaning $ on the left euro on the right . and , respectively
• tapping the textfield brings up the keyboard and the view slides correctly up and down
• bottom row contains buttons with donation suggestions followed by keyboard button
• tapping buttons updates the textfield
• taping the keyboard button slides up and down keyboard.
• when amount is edited make sure to not make the currency symbol deletable or curser movable left ($) or right of it(euro), also make sure that only valid amounts can be entered
• underneath is the Donate Apple Pay button for iOS 10.2 for < iOS10.2 use default Apple Pay button
• view should be adjusted to fit the theme meaning white apple pay button on dark, and black apple pay on white theme
• 2 grey separators separate top from amount entry and amount entry from buttons
• only the top 2 corners should be rounded of the sheet
• keyboard button updates when keyboard slides up and down
• view slides in from the bottom above tabbar
• the view needs to extend over the safe area
• view should not fade in while sliding in
• have button and donation method for devices that don't support apple Pay