Improve UX

[tiffanyhwong]

• Notify users that don't have Metamask that they need to install it.

• Notify donor they become a charity if you create a project. A charity cannot donate to project.

• Rerender after donate

• Update favicon

• What to do with charities once they have reached their goal

• Show users whether they're donors or charity

• Notify no longer taking donations for finished campaigns

• Round % donated in progress bar

• Remove donate option for charities

• Add confetti if donation is successful