Fix typo in launch success notification

[Sploder12]

Fixes launch success notification typo. Previously it said You can start using using it now. Now it says You can start using it now.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.86%. Comparing base (439285b) to head (1c7300f).
Report is 11 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3775   +/-   ##
=======================================
  Coverage   88.85%   88.86%           
=======================================
  Files         256      256           
  Lines       14557    14557           
=======================================
+ Hits        12935    12936    +1     
+ Misses       1622     1621    -1     

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[andrei-toterman]

Thanks, @Sploder12!