Styled the form to be centered and have uniform sizing accross the
board. Gave the form an id of contactForm.
Changed form hint to value as hint is not a thing.
Changed form to have padding on the bottom. Changed button size
to 15rem to match the text size of the form textfields.
Changed the container class to have a default uniform styling that
was uniform, opposed to just having the header be that way. Rarranged
some of the classes of html elements to help with this.