Update user page with password update form

[dreamingblackcat]

Admin should be able to update user passwords with a separate password update form once users are created.

Password change api is implemented in this PR => #98.

Password form should be a pop up similar to the existing New User form with just password and password confirmation fields only.

Please refer to the api docs for password change api.

[dev-wyp]

I have pick this issue..

[khinezarthwe]

https://github.com/thingaha/thingaha-web/blob/master/backend/docs/users.md#reset-password