Added validation checks to password field in sign up form

[oneknucklehead]

Pull Request Template

Description

Adds validation to the password field in the sign up form. Checks whether the password is 8 or more characters long, contains upper an lowercase letters and special characters using regex expression.

Fixes #143

Type of change

Please delete options that are not relevant.

• [X] New feature (non-breaking change which adds functionality).

Additional Context (Please include any Screenshots/gifs if relevant)

https://user-images.githubusercontent.com/75200954/164198888-bce49de7-afbc-415d-8729-030579fdf675.mp4

[oneknucklehead]

Hey @padmajabhol can you please merge this?

[padmajabhol]

Hey @padmajabhol can you please merge this?

I only review PRs. I don't think I should merge a PR before the approval of either of the mentors. Though I assure that every PR counts has a solid contribution regardless they are merged or not.

[oneknucklehead]

Hey @padmajabhol can you please merge this?

I only review PRs. I don't think I should merge a PR before the approval of either of the mentors. Though I assure that every PR counts has a solid contribution regardless they are merged or not.

Okay! I said this because another bug I worked on got committed to this PR. Issue #157

[padmajabhol]

Does this PR solves both #143 and #157?

[oneknucklehead]

Does this PR solves both #143 and #157?

yes it does.