Logger name uses App name

[andrsd]

Logger name must be globally unique. Thus if we have multiple App instances, the construction would fail. Logger uses app name it its name to make it unique enough (as long as app names are unique).

This improves cooexistence of multiple App instances

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.04%. Comparing base (f92f2c0) to head (b6af223).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           0.16.x    #1099   +/-   ##
=======================================
  Coverage   82.04%   82.04%           
=======================================
  Files         202      202           
  Lines       13372    13375    +3     
=======================================
+ Hits        10971    10974    +3     
  Misses       2401     2401           

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