[SiteSettings] Fix project roles dialog title

[imnasnainaec]

Fixes #3599

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This change is 

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 74.38%. Comparing base (e185a5d) to head (89e03c9).
Report is 30 commits behind head on master.

Files with missing lines	Patch %	Lines
...tManagement/ProjectUsersButtonWithConfirmation.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3600   +/-   ##
=======================================
  Coverage   74.38%   74.38%           
=======================================
  Files         285      285           
  Lines       11057    11057           
  Branches     1350     1350           
=======================================
  Hits         8225     8225           
  Misses       2445     2445           
  Partials      387      387           

Flag	Coverage Δ
backend	83.72% <ø> (∅)
frontend	66.18% <0.00%> (+0.43%)	⬆️

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[jasonleenaylor]

Reviewed 1 of 1 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @imnasnainaec)