Set user url param to username

[D0gmaDev]

Closes #540

Set the user "param" to be username instead of id

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (d36d60b) to head (f04bc74).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #543   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          110       110           
  Lines         2449      2452    +3     
  Branches        81        81           
=========================================
+ Hits          2449      2452    +3     

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