Dark mode

[its-Pratik-15]

Description

it will give the client a nice view during night and it will visually appeling

Code of Conduct

• [X] I agree to be friendly and polite to people in this repository
• [X] I want to work on this issue and already read the Contributing Guidelines

[its-Pratik-15]

if you assign i will add it also add hacktoberfest tag to it

[growupanand]

duplicate https://github.com/growupanand/ConvoForm/issues/323