Added toggle dark and light theme on navigation

[urmauur]

Solved issue #24

• [x] update some color scheme
• [x] Add toggle theme on the navigation
• [x] Using different logo each theme
• [x] Update style about page

Here the screenshots update

[luisFilipePT]

Thanks for your contribution! 🙌

@all-contributors please add @urmauur for code and design

[allcontributors[bot]]

@luisFilipePT

I've put up a pull request to add @urmauur! :tada:

[urmauur]

@luisFilipePT thanks for merge, btw can you update this PR with label hacktoberfest-accepted, take a look this https://hacktoberfest.digitalocean.com/hacktoberfest-update

[luisFilipePT]

@luisFilipePT thanks for merge, btw can you update this PR with label hacktoberfest-accepted, take a look this https://hacktoberfest.digitalocean.com/hacktoberfest-update

You should not need that since this repo has the hacktoberfest topic, can you confirm if your contribution does not pop up here already if not let me know and I will add the tag. https://hacktoberfest.digitalocean.com/profile

[urmauur]

@luisFilipePT thanks for merge, btw can you update this PR with label hacktoberfest-accepted, take a look this https://hacktoberfest.digitalocean.com/hacktoberfest-update

You should not need that since this repo has the hacktoberfest topic, can you confirm if your contribution does not pop up here already if not let me know and I will add the tag. https://hacktoberfest.digitalocean.com/profile

Yes sure, thank for clarify

[urmauur]

@luisFilipePT can you add this pr with hacktoberfest-accepted