Fix padding of elements in address bar of webview

I've fixed padding as per figma designs in the address bar. Have also fixed the following points:

• Updated the padlock icon in shown before the url and fixed background color behind the system navigation bar overlay.
• Fixed constant top padding on webview screen.
• Fixed progress bar's visibility when page is 100% loaded (it shouldn't be visible when page is loaded i.e progress == 1.0)

Notes after fixing padding issue

• This is how webview screen looks for Netflix

• This shows the padding & boundaries of components. Notice the top and bottom padding on the screen, this is received from media query and is not a fixed value now (the top padding was previously a constant value 30. We couldn't have fixed webview bar padding properly without modifying this constant padding.