Metamask-extension: New confirm screen: add fallback when no function is found

[bdresser]

From our conversation this afternoon: if a contract isn't found and we can't look up the function call, the confirm screen shows a blank in the Parameters field and defaults to the CONFIRM header. Probably makes sense to have a fallback screen for when we don't actually know what type of function it is.

@alextsg @danjm

[bdresser]

[bdresser]

@cjeria after talking through with @alextsg, when we can't find the function we'll update the header (where it says CONFIRM) to say UNKNOWN FUNCTION and then down below on the data tab, we'll have FUNCTION TYPE: Not Found

sound good?

[cjeria]

sounds good! @bdresser

[cjeria]

a bit off topic, but what's up with the bright aqua blue bg color of the network?

[alextsg]

@cjeria That's my bad. Will fix it soon.