Updated HTML and CSS of Contact Form

[sohail60]

Related Issue

• Too much padding in Contact Form

Closes: #78

Are you creating this PR under Hacktoberfest

Yes, I'm opening this PR under hacktoberfest.

Describe the changes you've made

Decreased the padding and improved HTML

Describe if there is any unusual behaviour of your code(Write NA if there isn't)

NA

Checklist:

• [x] My code follows the style guidelines of this project.
• [x] I have performed a self-review of my own code.
• [x] I have commented my code, particularly in hard-to-understand areas.

IMPORTANT NOTE: There were two missing closing tags in HTML. I added the closing tag of Form but the div closing tag altered the CSS so I commented it out. Will look into it later by creating another issue.

[yashikabhargava]

@sohail60 kindly resolve the conflicts.