adding functionality for users to update password

[jubuyer]

Changes:

• Adds update-password.js file for users
  • Allows users to update their password
  • Validates password input by user, requires matching confirmation of input
  • Users are routed back to the settings page after successfully updating password
• Updates settings.js with link to update password page

To Test:

• Run npm run dev in client and server directories and view webpage at http://localhost:3000/
• Create an account and navigate to settings page to update password

[render[bot]]

Your Render PR Server URL is https://audiocard-client-pr-173.onrender.com.

Follow its progress at https://dashboard.render.com/web/srv-coe9u3i0si5c73agoeo0.

[render[bot]]

Your Render PR Server URL is https://audiocard-server-pr-173.onrender.com.

Follow its progress at https://dashboard.render.com/web/srv-coe9u420si5c73agoesg.

[jubuyer]

Update to settings.js (User settings page)

[jubuyer]

Input validation when user submits new password in update-password.js