update all references from login.jsp to Login.jsx

[TanyaStere42]

Feature description and context

With the new react login page, we need to make sure that we are updating throughout the platform to get rid of any outdated references to the jsp page so we can eventually remove the jsp

Feature sign-off requirements

• LoginUser.java: comments and string url
• DELETE: LoginUserSocial: comments, string url, geturl requests, redirects
• DELETE: SocialConnect.java: comments, geturl requests, redirects
• DELETE: SocialGrabFiles.java: comments, redirects, geturl requests
• DELETE: UserCreateSocial.java: comments, redirects
• UserResetPassword.java: geturl requests
• index.jsp: comment
• web.xml: comments, login url

Technical notes

If any additional references to login.jsp are found, feel free to update those as well. call them out in the PR

[erinz2020]

notes to future me: also fix the logout.jsp issue

[erinz2020]

add the "redirect user after login" feature, need Jon's help