Form Uniformity

[ItsAnkan]

What has been changed here -

• Moved all form CSS to a separate SCSS file to be used when forms are involved
• Set up a njk file containing all form elements in macro form so as to create a form with use
• Created useful functions to extract data from forms
• Migrated most of the forms to use this format
• Add a Forms.md to have a detailed explanation about using forms
• Edited README.md for form guide
• Fixed Uniformity in forms #205
• Cleanup stuff used for testing

[ItsAnkan]

@Goose-Of-War this is unrelated to this PR, but the message container in the forms needs fixing, it doesn't behave as its supposed to for mobile displays. Will have to make an issue for that

[Goose-Of-War]

Green light