Enhanced signin and signup page

[maheshwar04]

Fixes #(issue number)

Fixes #570

Describe the changes you've made

Changes the dimension of sign in with google button so it is looking good now, Added signin button in signup page and changes the position of protected by captcha paragraph now any one can redirect to signin page fron there.

Deploy your changes to github page or netlify and mention deployment link:

[https://maheshwar04.github.io/Movie-Streaming-Website/]()

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

NA

Screenshot

Checklist

• [x ] I have mentioned related issue number in PR description.
• [x ] I have added screenshots and related demo links of my changes..
• [x ] The title of my pull request is a short description of the requested changes.
• [x ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] Open Source Program names(OPTIONAL: If you participated in any open-source program then please mention the program name here)