Unable to reset a password by a user with a space in their username

[McLaynV]

Description

When a user has a space in their username, they are unable to reset a forgotten password.

It looks like some URL (un)escaping issue.

Version

• Grav v1.7.46
• Admin v1.10.46

Steps to reproduce

• Go to https://HOSTNAME/admin/accounts/users/:add to add a new user and fill the form:
  • Username: test T
  • Email: (your email address)
  • Full name: Testor Testorson (or anything else)
• Go to https://HOSTNAME/admin/forgot to reset a password
  • Username: test T
• Check your email and go to the reset URL
  • For example: https://HOSTNAME/admin/reset/u/test T/fd16523e91eab7acc748ed01715b1d4c
  • Username is now pre-filled with test%20t (the username is URL-encoded with the space replaced with %20)
  • When you fill a new password and press the button, the RESET_INVALID_LINK error message is shown