Revert "Hide generated source files from clang-tidy"

[knoepfel]

Reverts #471

Seeing this failure with #471 on macOS:

cmake --build /Users/kyleknoepfel/work/phlex-devel/build

[51/256] Building CXX object phlex/phlex/app/CMakeFiles/version_obj.dir/version.cpp.o                                 
FAILED: [code=1] phlex/phlex/app/CMakeFiles/version_obj.dir/version.cpp.o 
/usr/bin/clang++  -I/Users/kyleknoepfel/work/phlex-devel/srcs -I/Users/kyleknoepfel/work/phlex-devel/build/include -O3 -fno-omno-omit-frame-pointer -g -DNDEBUG -std=c++2b -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/McS.ltiacOSX.platform/Developer/SDKs/MacOSX26.4.sdk -mmacosx-version-min=26.3 -fPIC -Wall -Werror -Wunused -Wunused-parameter -pai- Tot-frame-pointer -g -DNDEBUG edantic -MD -MT phlex/phlex/app/CMakeFiles/version_obj.dir/version.cpp.o -MF phlex/phlex/app/CMakeFiles/version_obj.dir/vico-hh/DelerDKacO6.4 -mm-versin=26-std=c++2b -arch arm64 -isysroot /Applications/Xersion.cpp.o.d -o phlex/phlex/app/CMakeFiles/version_obj.dir/version.cpp.o -c /Users/kyleknoepfel/work/phlex-devel/build/xepsc/phapakeson_r/vpp.o/phleeFileIC -Waror -WuWunusedr -pedantT phlex/pMakeFiles/code.app/Contents/Developer/Platforms/Mphlex/phlex/app/version.cpp
/Users/kyleknoepfel/work/phlex-devel/build/phlex/phlex/app/version.cpp:1:10: fatal error: 'phlex/app/version.hpp' file not fount found
    1 | #include "phlex/app/version.hpp"
      |          ^~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[64/256] Building CXX object phlex/phlex/core/CMakeFiles/phlex_core.dir/framework_graph.cpp.o                         
ninja: build stopped: subcommand failed.

[knoepfel]

I think I have a solution for this problem

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

@@            Coverage Diff             @@
##             main     #474      +/-   ##
==========================================
- Coverage   85.43%   85.40%   -0.03%     
==========================================
  Files         144      144              
  Lines        3591     3591              
  Branches      615      615              
==========================================
- Hits         3068     3067       -1     
  Misses        315      315              
- Partials      208      209       +1     

Flag	Coverage Δ
unittests	85.40% <ø> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.
see 1 file with indirect coverage changes

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